Printed in Japan 320200-HG-01E

Instructions

Preface
Congratulations on your purchase of the Mamiya 645 AFD III Camera.
Mamiya pioneered the 645 SLR system camera three decades ago and the Mamiya 645 AFDIII, with its TTL auto-focus, auto-exposure, auto-flash and auto-film winding features is the latest Mamiya masterpiece and reflects its long tradition of medium format camera expertise.
Special Advice To Professional Photographers
Your Mamiya 645 AFDIII is designed for heavy professional use and will give you a long service life if properly maintained. Your camera and lenses have many moving parts which require periodic lubrication. Its electronic components, too, are subject to wear and tear and are affected by ambient conditions like dust, sand, sea air, heat and moisture. If cameras had odometers like automobiles, it would be easier to specify servicing schedules. May we suggest that if you shoot thousands of film rolls per year, you send your equipment annually for servicing to the Mamiya distributor in your country. Mamiya 645 AFDIII corresponds with digital backs compatible with MSCE (Mamiya Serial Communication of External) system.
Combining 35mm handling ease and speed but with an image size almost 3 times larger, it is a full-featured camera, utilizing many digital controls and LCD displays, deeming it appropriate for the age of digital photography.
Its high-tech focal plane shutter with speeds up to 1/4000 sec. permits flash sync up to 1/125 sec. and has an exclusive "Safety Retraction" feature, which protects it against accidental damage.
The AE Prism Finder with its many features, protected by a sturdy magnesium housing, and also the Power Drive Grip, are now integral components of the die cast aluminum camera body, designed for heavy professional use.
All the many features, safety interlocks and other important information are covered in detail in these instructions. It is imperative that you read them thoroughly before you put your camera to work, in order to ensure proper operation and maximum results.
In order to acquaint yourself with the functions of the camera, you will want to practice without film. Please see the page 9 how the camera can be tested without film.
Names of Parts and Functions
Hot shoe (page 82) Exposure mode dial lock release button (page 53 to 60) Exposure mode dial (page 53 to 60) Auto focus assist infrared light emission window (page 50) Eyepiece shutter lever (page 75) Main LCD (page 5) Self timer lamp (page 77) Diopter adjustment lens (standard accessory) (page 20) Dark slide storage pocket (page 32) Memo clip (page 103) Screw cap for battery compartment for magazine LCD (page 13) External power socket (page 102) Battery case lock lever (page 11) Rear dial (page 6) Mirror*
Do not touch the mirror with your hand
Strap mount (page 24) Front dial (page 6)
Battery case (page 11) Tripod socket (page 103)
Electronic contacts Lens mount alignment mark(page 16) Depth of field preview button (page 80)
Shutter release button (page 38) Drive dial (page 51) AF lock button (page 49)

Strap mount (page 24)

Rubber eye piece Diopter adjustment dial (page 19)
Magazine LCD panel (page 5) Down button (page 28, 34 & 76)
Self timer button (page 52, 71 & 72) Main LCD backlight button (page 78) Multiple exposure button (page 61) Focus point selector button (page 44)

3. Set the film type (120 or 220).
Hold the button D under the knob and turn the pressure plate. This frees the pressure plate and permits it to be turned and set for either 120 or 220 film.

5. Set a film.

Flip open the backing plate G of the upper compartment, set a new roll of film as shown, and return the backing plate G to the original position.
Be sure to align the lock pins with the holes on the pressure plate. The selected film type will be visible through the window on the pressure plate and will be displayed on the LCD of the magazine when the roll-film insert is loaded.

Film path

Loading Film (continued)
6. Attach the leader paper of the film to the empty spool.
Run the film as shown, and insert the tip of the leader paper into the slit of the empty spool. Wrap the leader paper around the empty spool once or twice by rotating it. Further adjustment of the film position is not necessary. The camera automatically advances the film to the first frame.
Press down gently on the loaded film, rotate the SPL side spool so that the film does not develop any slack, and wind the film tightly. If the film is not wound tightly, the film winding will loosen, possibly causing light fogging.

8. Close the back cover.

Push in the upper part of the back cover firmly to close it. Attach the magazine to the camera body. Pull out the dark slide, and press the shutter release button halfway. This will advance the film to the first frame. Place the dark slide in the magazine's rear storage pocket.
In this camera, the film is automatically advanced to the first frame. If it is not advanced properly, the film will continue winding for a certain period of time, after which it will automatically come to a stop. If this happens, fewer frames (about 10 frames) will be available for shooting. To be on the safe side, after taking 10 frames, take the film out following the procedure for removing the film before reaching the end of the film. (page 40) When the film is not wound properly, the - - mark appears in the LCD. If you do not operate the camera for 60 seconds, the camera will automatically enter sleep mode in order to save battery power. In sleep mode, closing the back cover
7. Insert the loaded film insert into the magazine.
Pinch the knobs H and place the roll-film insert in the housing. When the top of knob H is pushed, the left and right latches open up, and the inner frame clicks into place.
does not trigger the automatic film advance, even if it is set so in the custom setting (C-31 on page 96). In this case, press the shutter release button halfway down to feed the film to the 1st frame position. Film might be accidently exposed. Avoid intense light when loading/ unloading film, and do not wrap too much of the leader paper into the spool.
Make sure that the film insert is properly fixed. When one or both latches are out of position, press the projecting portion I or J until it clicks into place.

1. The camera can be set to wind the film to the 1st frame position automatically after the back cover is closed. Custom settings (C-31 on page 96) 2. The camera will not release the shutter when the rear cover is closed with no film loaded. This can be changed to permit the shutter to release with or without film. Custom settings (C-30 on page 96) 3. The number of frames available for shooting can be set to 15. Under certain shooting conditions, this may be affected by the failure of the film to straighten out. (page 76)
Loading the film (continued)
Selecting the Shooting Frame Number Display
Under the initial settings, the shooting frame number display advances by one frame with each picture taken (forward counting). This display can be changed to reverse counting, a system which shows the number of remaining shooting frames. When the magazine LCD appears, press the (up) or (down) button until dlSP blinks at the top of the magazine LCD panel and U appears in the frame number display area (in forward counting). When the (up) or (down) button is pressed again, d appears (in reverse counting). Each time the (up) or (down) button is pressed, the display is switched, so after the desired display system appears, press emergency film wind button A to set the system. Five seconds after selecting the shooting frame number display, dlSP stops blinking and illuminates, indicating the setting has been automatically established.
Compatibility between the HM402 and HM401 120/220 magazines
The HM402 is compatible with the HM401 120/220 magazine used for the 645AF, 645AFD, and 645AFD II camera bodies in terms of its outer and inner frames, but it may not be possible to achieve its prescribed performance, depending on the camera body and the outer and inner frame combination of the magazine used.

Camera body

Magazine outer frame
Inner frame used for HM402
Inner frame used for Inner frame used for HM402 HM401
Wind-up speed: 2 frames/sec. Imprinting of focal length information Wind-up speed: 1.4 frames/sec. Imprinting of focal length information

645AFD III, 645AFD II

Wind-up speed: 2 Wind-up speed: 1.4 frames/sec. frames/sec. Outer frame No imprinting of focal No imprinting of focal used for HM401 length length information information Missing imprinted character Wind-up speed: 1.6 Wind-up speed: 1.3 Outer frame frames/sec. frames/sec. used for HM402 No imprinting of focal No imprinting of focal length information length information

Mirror up Shooting

When the shutter button is half-pressed, the mirror moves up, and when the shutter button is pressed again, the shutter is tripped, and a picture is taken. For the mirror up shooting procedure, see pages 73 and 74.

Exposure Modes

Program AE (P)
The aperture and shutter speed are determined automatically for the optimum exposure, according to the existing ambient light. This mode is best suited for general photography, allowing the user freedom to concentrate on the subject. Hold down the button A and turn the exposure mode setting dial to P (program AE) position.
645AFDIII program shift chart

(ISO100/AF80mm F2.8 D)

8 5.2.8
-1 -2 -3 -1 1/2 1/4 1/8 1/15 1/30 1/60
Normal Program shift area

Shutter speed

1/250 1/1000 1/4000 1/500 1/2000 1/125
When the Program line is shifted, the aperture value changes along with the shutter speed to maintain the proper exposure. If a correct exposure cannot be obtained, the shutter speed and aperture value blink. In such cases, the pictures can be taken but they may turn out too bright or too dark.
1. You can choose either aperture or shutter-speed to give priority in program line shift. Custom settings (C-14 on page 94) 2. Increment of the aperture and shutter speed can be set at either 1/3 or 1/2-stop. Custom settings (C-01 on page 93)

Program Shift (PH/P L)

You can change the shutter speed and aperture by turning the front and rear dials in the P (Program AE) mode. In order to avoid blurred images (shake while releasing the shutter), or to open the aperture, change to PH (high speed). For slower shutter speeds and wider depth of field, change to PL (low speed). This function allows you to make these changes quickly.

Normal

Exposure Modes (continued)
Aperture Priority AE (Av)
Set the desired aperture, and the camera selects the optimum shutter speed accordingly. Use the Av mode to maintain specific control over depth of field, i.e. taking portraits or landscapes. 1. Hold down the button A and turn the exposure mode setting dial to Av (aperture-priority AE) position.

Shutter Priority AE (Tv)

Set the desired shutter speed and the camera selects the optimum aperture accordingly. Fast shutter speed can be used to freeze motion, and slow shutter speed can be used to blur motion on purpose. 1. Hold down the button A and turn the exposure mode setting dial to Tv (shutter-priority AE) position.
The shutter speed value will blink when the subject is too dark or too bright for a correct exposure. To obtain the correct aperture, adjust the aperture value until the shutter speed value stops blinking and remains lit.

When a polarizing filter is used, ensure that a circular polarizing filter (circular filter: C-PL) is used. The correct exposure cannot be obtained with a normal polarizing filter (PL).
With an inappropriate exposure setting, when shooting subjects that are too light or dark, the user is warned by the flashing external LCD or the LCD inside the viewfinder. At such times, the correct exposure cannot be obtained.
2. Press the SET button or exposure metering mode button A to enter the setting.
Warnings that the exposure is outside the metering range
Program AE (P) The shutter speed and f-number blink. Aperture priority AE (Av) The shutter speed blinks. Shutter priority AE (Tv) The f-number blinks. Manual mode (M) The exposure metering value difference is displayed.
Exposure metering is performed after automatically selecting average/spot exposure metering. Depending on the subject conditions, centerweighted average/spot exposure metering is selected automatically, and the correct exposure is measured. Spot exposure metering is automatically selected when the brightness of the spot exposure metering range becomes darker than the brightness of the entire screen. If there is very little difference between the spot exposure metering value and center-weighted average exposure metering value, the correct exposure level is obtained as the intermediate value. The average brightness of the entire screen is measured, emphasizing the center of the screen.
Average/spot auto exposure metering
The time used for the metering timer can be changed. Custom settings (C-04 on page 93)
Center-weighted average/spot exposure metering
Center spot exposure metering
The brightness of an area equivalent to 7.6% at screen center is measured, and the exposure is determined. The circle at screen center serves as a general guideline. This mode is suited to measuring subjects with strong contrasts or measuring only screen portions.

Exposure Compensation

In some situations, such as a great difference between the subject and background brightness or overall subject tones that will not meter correctly because they are all black or white, the resulting photograph may be under- or overexposed. When this occurs, use the exposure compensation function. Exposure compensation can also be used when you want to intentionally create overexposed or underexposed pictures. 1. When exposure compensation button A is pressed, appears on the external LCD. When the front or rear dial is turned counterclockwise, the exposure is increased; conversely, when it is turned clockwise, it is decreased. The exposure compensation value can be checked on the external LCD or LCD inside the viewfinder. 2. After taking the pictures, press exposure compensation button A again to return the exposure compensation value to 0. The exposure compensation value mark on the external LCD is cleared, and the exposure compensation function is released.

Display of the exposure compensation of the viewfinder LCD
(When a Metz flash is not equipped.) Exposure mode P Av Tv M X Program AE Aperture priority AE Shutter priority AE Manual mode Synchro mode The difference between the metered value and the set exposure value is displayed. Not displayed. The set value is displayed. Exposure compensation display
After taking pictures using the exposure compensation feature, be sure to return the exposure compensation dial to the 0 position. Exposure compensation is also possible during AE lock. The shutter speed changes with exposure compensation in manual mode ("M").
1. The width of the exposure compensation step can be changed.
Custom settings (C-01 on page 93). 2. The maximum exposure compensation step can be changed to Custom settings (C-05 on page 93).

AE Lock Mode

Shooting with the AE lock function is useful in cases where the desired focal point differs from where the focal point is usually measured, or when it is necessary to measure the exposure using spot metering in order to bring the desired subject into focus. The AEL button will lock the Auto-exposure value as the photo is being recomposed. 1. Turn the shutter release mode selector lever to S or C.
Metered-value difference indicator
Keep pressing the AEL button A, and the difference between the metered exposure value and the exposure of the new composition will be displayed on the viewfinder LCD. This function can be used to see if an object of very different brightness levels can be properly photographed.
2. Turn the exposure mode setting dial and select P, Av, or T. 3. Focus on the subject for metering exposure, and press the AEL button A on the rear of the grip. will appear on the viewfinder LCD, indicating that the exposure value is locked. 4. Move the camera to recompose the shot, then take the picture.
on the viewfinder LCD blinks to indicate the exposure is locked, when you continue to take the next picture in the AE lock mode. If you turn the shutter release mode selector lever to the L (power OFF) position, or after a lapse of one hour, the AE lock mode will automatically be cancelled. In the Manual M exposure mode, you cannot use the AE lock function. When the exposure metering value difference display appears, press AEL button A for about 1 second. The one-push shift function is now activated to shift to the shutter speed based on the metered result. (page 59)

3. Take the pictures. When the shutter button is half-pressed when shooting in multiple exposure mode, the ME mark blinks, and the number of multiple exposures is displayed. 4. Expose the frame how many times you choose.
AE settings under auto-bracketing mode
Exposure mode P Av Tv M X Program AE Aperture Priority AE Shutter Priority AE Manual mode X-sync mode Setting Shutter speed varies Shutter speed varies Aperture varies Shutter speed varies No setting
5. Press multiple exposure button A for 1 second to display the multiple exposure setting screen, turn the rear dial, and set the mode to OFF. 6. When the SET button B or the multiple exposure mode button is pressed, the film is wound by one frame, and multiple exposure mode is released.
With M (Manual mode), aperture can be changed under auto-bracketing mode. custom setting (C-10 on page 94)
When the shutter button is half-pressed at any point while shooting in multiple exposure mode, the "ME" multiple exposure mark blinks on the LCD inside the viewfinder.
Multiple Exposure Mode (continued)
How to set the number of multiple exposures for shooting in multiple exposure mode
When "1. Number of multiple exposures" is selected using custom setting C-32, multiple exposure pictures can be taken for the number of multiple exposures selected. 1. Set to the multiple exposure mode by holding down the multiple exposure mode button A. The multiple exposure mode mark and the number of multiple exposure 0 are displayed on the external LCD. 2. Set the number of multiple exposures by turning the front or rear dial. Any number from two to six multiple exposures can be set. The selected number is entered by pressing SET button A or the multiple exposure mode button or after 5 seconds have passed. 3. Press the shutter release button. Multiple exposures are made on the same frame. After completing the required multipie exposure, the multipie exposure mode is automatically cancelled.
To cancel the Multiple Exposure Mode
Make sure to pull the dark slide out. Then hold the emergency film winding button C while halfpressing the shutter release button. The camera advances the film one frame and then exits from the multiple exposure mode.

When the dark slide is inserted into the Magazine, the film will automatically wind up. If the film holder is detached in the middle of multiple exposure, -no- will blink on the top LCD for 3 seconds. The multiple exposure mode is now cancelled. However, as the the film holder is still in the multiple exposure mode, the camera will resume the multiple exposure mode when the same film holder is attached. The multiple exposure mark will blink on the LCD, and number of the remaining exposure will be automatically set at 1.
Guideline for exposure compensation during Multiple Exposure Mode
As in the multiple exposure mode several shots are exposed on a single frame, exposure compensation may be needed depending on the subjects and the backgrounds.
When the shutter button is half-pressed at any point while shooting in the multiple exposure mode, the ME multiple exposure mark blinks on the LCD inside the viewfinder. To check number of the remaining shots, press the multiple exposure setting button. To increase number of exposures to more than six in the middle of multiple exposures, or to decrease the number of exposures, press the multiple exposure setting button and turn the front or rear dial. When number of the exposures is terminated in the C (continuous) shutter release mode, the top LCD panel shows End, and the camera automatically cancels the multiple exposure mode. To cancel the multiple exposure mode before taking the first shot, press the multiple exposure setting button and change the displayed number to 0.
Exposure compensation in typical multiple exposures
Number of exposures 4 Exposure compensation 1.0 1.5 2.0
The optimum exposure compensation value will vary depending on actual photographic conditions. We recommend taking test shots.
Taking Photos with the Mirror Up
This function prevents mirror-caused vibrations which may blur the image in close-up photography, when shutter speed is slow, when a telephoto lens is used, or when photographing a poster or another picture. When using the mirror-up, Electromagnetic Cable Release RE401 (optional) is recommended.

In the manual mode

The procedure is the same as that taken up to step 3 of auto focusing. 1. Set the focus mode selector lever to M (manual focus mode).
Using auto focus and auto exposure
1. Set the drive dial to "M.UP." 2. Select S (single focus mode) by turning the focus mode selector lever. 3. Turn the exposure mode-setting dial to choose any of P, Av, or Tv exposure mode.

25 0.8

2. Determine the exposure, focusing and frame structure by pressing the shutter release button halfway while looking into the view finder. 3. Mirror up by fully pressing the shutter release button.

Turn the eyepiece shutter lever in the direction of the arrow.
Number of frames for 120 and 220 films 120 film: Change the number from 16 to 15 frames. 220 film: Change the number from 32 to 30 frames.
Since the frame number display will change each time the (up) or (down) button is pressed, display the desired number of shooting frames, then press the emergency film wind button A to enter the setting. Five seconds after the number of shooting frames has been selected, the display stops blinking and lights up, indicating the setting has been automatically entered.
The number of frames cannot be set while shooting. When the magazine is removed from the camera body, the display will not appear if the magazine does not have its battery in place. In this case, load the magazine onto the camera body and proceed with the setting.

Self Timer Mode

With this function, under the default setting the shutter is released 10 seconds after the shutter release button is pressed. The self timer lamp flashes slowly for the first 7 seconds, then flashes quickly for the last 3 seconds before the shutter is released. Use this function to take group photos or to photograph yourself. 1. Mount the camera to a tripod.
Long Exposure Mode (Bulb Mode) / Backlight Button
Long Exposure Mode (Bulb Mode)
To expose film longer than 30 seconds, adjust the shutter speed to B (bulb). In order to prevent camera shake, use an electromagnetic shutter release and tripod. 1. While pressing the unlock button, turn the exposure mode dial and set it to M (manual mode).
2. Turn the shutter release mode selector to the (self timer mode) position. 3. Turn the front dial, and set the self-timer mode to ON. 4. Check the view by looking through the viewfinder. Make sure that the focus is correct, press the shutter release button and the shutter will be released after 10 seconds.
As the camera is electronically controlled even during exposures, it is recommended to replace batteries before bulb exposure. (See page 11.)
Change the self timer time
1. Press the self timer button to set the self timer mode.
2. Turn the rear dial, and change the operating time. It can be set from 2 to 10 seconds in units of 1 second and for more than 10 seconds in 10 second units.

Backlight Button

To see the main panel at night or in dark places, press the backlight button A/. The backlight will go on approximately 10 seconds and go off unless there is another operation.

How to set dial lock

Press the multiple exposure mode and auto bracketing mode button together for about 1 second so that On, flashes on the display.
The setting will be stored after one second.
When the dial lock is ON, the shutter speed and aperture will not change even if you turn the front or rear dial. When you activate the electronic dial lock, and if you then operate the electronic dial, the dial lock indicator L on the main panel blinks for three seconds to show that the electronic dial lock is functioning. Dial lock can not be set when the exposure mode is P (program AE). Even while dial lock is set, the front dial or rear dial can still be used to perform the various settings. (Dial lock is temporarily released.)

How to release dial lock

To release dial lock, press the same buttons as in "How to set dial lock" so that OF flashes on the display.
When the aperture is open (the subject depth is small)
When dial lock is set, the dial lock display "L" appears on the external LCD.
When the aperture is stopped down (the subject depth is large)

7 ft 2 m

Depth of Field Preview Button
When the preview button is pressed in, the depth of field for the aperture set on the camera can be checked by looking through the viewfinder. After focusing, press the preview button. The diaphragm will be stopped down to the set aperture.
While operating the preview button, you cannot release the shutter.

Infrared Photography

When taking photos using infrared film, the position at which the subject is in focus is slightly different than that of regular film. This is because the infrared rays have a longer wavelength and the image converges behind the film plane of regular film. Use the procedure described below when taking photos using infrared film. 1. Set the focus as usual. Read the point on the distance scale matching the center index of the depth scale. 2. Set the focus mode selector lever to M (manual focus mode). Turn the focusing ring clockwise and align the read point to the infrared index.

Flash Photography

In addition to its standard flash sync system, the Mamiya 645 AFDIII features TTL (through the lens), off the film (OTF), electronic flash exposure metering. A flash sensor located inside the camera body reads the flash reflected off the film surface at the moment of exposure. The sensor is connected via the Mamiya 645 AFDIIIs dedicated hot-shoe to a shoe- or handlemount style Metz flash unit via the Metz SCA 3952 TTL Adapter. Maximum flash sync speed is 1/125 sec., making daytime synchronization possible. The ISO of the flash is automatically set through the TTL connection from the camera's Film Magazine; any adjustment to this is instantly recognized after the setting is locked and the shutter release is half-pressed. Also, when Film Magazines with different ISO settings are switched on the camera body, the TTL flash connection instantly recognizes the change. To utilize the TTL flash feature with all TTL-operable Metz flash units, a Metz SCA 3952 Module is required. Please see the chart below for compatibility and/or additional adapters that may be necessary. The resulting flash exposure automation determines correct flash exposure and automatically adjusts the Shoe-mount x output of the flash. It also automatiShoe-mount x cally corrects for exposure compenHandle-mount x x sation normally required when using Handle-mount x x filters, close-up bellows or extension Handle-mount x tubes. However, as with all TTL systems, it requires manual compensation for differences in film surface reflection characteristics. The amount of compensation is determined by experimentation and is performed on the Mamiya Film Magazine ISO setting.

is not displayed, the flash compensation button A can not
2. When the flash charge confirmation lamp lights, press the set button A in. The display appears on the main LCD panel.
be used. Keep pressing the set button to activate the flash compensation mode. You can check the exposure compensation value. If you turn the shutter release mode selector lever to the L (power OFF) position, the compensation value will be canceled.
Exposure compensation and flash compensation can be linked. Custom settings (C-25 on page 95)
3. Turn the front or rear dial to select the flash compensation value.

Superimposing Data

Flash Photography with electronic flash models other than Metz
1. To use a grip type flashgun or a strobe with other electric contacts than X contact, connect the sync. cord to the cameras sync. terminal. (See note below about flashes designed exclusively for other makers cameras.) This is a function to allow various pieces of shooting information to be superimposed on the edge of the film. The info that is superimposed can be selected from the following three modes. To specify this function, use the Custom settings (C-02 on page 93). This section describes the details of the information that can be superimposed.
Remove the rubber cover when connecting the sync. cord. After shooting, be sure to attach the rubber cover in order to protect the synchro terminals contacts.
Exposure mode Aperture value Shutter speed Exposure compensation value / frame order with auto bracketing function: N, U, and O Metering mode* Focal length of lens Index number

DATA/INDEX mode

(Superimpose shooting info and an index number)
2. While pressing the unlock button, turn the exposure mode setting dial and set it to X (1/125 sec.) or M (manual). When M (manual) is selected, turn the front dial and set the shutter speed to 1/125 sec. or slower. 3. Turn the rear dial to set the aperture, then take the picture.
This cameras synchro contact is an X contact.
Data superimposed in manual mode
Exposure mode Aperture value Shutter speed AE mode
Exposure metering difference display Metering mode* Focal length of lens Index number
When manual exposure is selected and when the exposure metering difference exceeds 6EV, " o " or " u " will be superimposed on.

WARNING

- Using flashes designed exclusively for other makers cameras may damage the cameras internal mechanisms if connected to the camera's hot-shoe. In this situation, use an off-camera flash bracket and connect a sync. cord to the camera's synchro terminal. - When using flashes with a flash duration of 1/500 sec. or longer, set the shutter speed to 1/30 sec. or less.

DATE/INDEX mode

2. Turn the exposure mode dial to select CF (Custom Function mode).
Yes (data, index) Yes (date, index) No Yes Open Minimum 15 sec. 5 to 60, on 3EV 5EV Backlight button used on Alkaline-manganese Ni-CD, Ni-HM N-U-O N-O-U U-N-O Released after Power OFF Until released one shot Shutter speed F-number Front: Tv, Front: A v, rear: Av rear: Tv No (Exposure Yes compensation) No switching Switched (CCW:decrease/ (CCW:increase/ CW:increase) CW:decrease) Program shift No (front: AFL /rear: AEL) Shutter speed shift

Number of stops

3. Turn the rear dial to select the settings for user A, B, or C.
C-17 C-18 C-19 C-20 C-21 C-22 C-23 C-24 C-25 C-26 C-27 C-28 C-29 C-30 C-31 C-32 C-33 C-34 C-35
4. Turn the front dial to select the item you want to set.
There are 35 items from C-01 to C-35.
F-number shift Yes (front AEL /rear: AFL) AF operation/ AF operation AE lock, Released after AEL function lock/unlock mode Continuous one shot Focus indicator selection Yes No AFL function lock mode Yes (no AF operation) Yes (AF operation) M mode one-push setting Shutter speed shift F-number shift 1 to 60 minutes, on Bulb exposure time setting 60 minutes While shutter button Each time shutter Bulb shutter release setting is pressed button is pressed Shutter speed in X mode 1/125 1/90 (1/80) Metered value Automatic sync speed setting 1/60 to 1/125 (less than1/125) TTL flash compensation mode No Yes AF beam setting Fires Does not fire Flash sync. timing No Yes Copy custom function No Yes (User A) Custom function reset No Yes Shutter release without film No Yes Shutter button Closing rear Auto film loading setting pressed halfway cover Until multiple exposure Multiple exposure Multiple exposure mode button is pressed number setting Digital back CF configuration No A Clock/calendar setting Index setting
While the shutter button is pressed

1/45(1/40)

Yes (User B)

Yes (User C)

Types of Custom Functions
C-00 Custom functions No.
0: [Initial setting] 1: A 2: B 3: C When 0 has been selected and set, none of the custom items can be set. 1, 2 or 3 must be selected and set without fail.

C-29 Custom function reset
This function is used to group all the user function settings selected from C01 to C-27 together, and initialize them (to the default settings). 0: No (initial setting) 1: Yes
C-25 TTL flash compensation mode
This function is used to set whether to link exposure compensation and flash compensation when using the flash unit made by Metz (with the SCA3952 adapter). 0: Not linked (initial setting) 1: Linked
C-33 Digital back CF configuration
This function is used to select the user function (A, B or C) when an MSCElisted digital back has been loaded. 0: No (initial setting) 1: A 2: B 3: C
C-21 Bulb exposure time setting
This function enables bulb shooting by setting the bulb shooting time from 1 to 60 minutes provided that the battery charge lasts. It can be used to decide on the bulb shooting time from 1 to 60 minutes.
C-30 Shutter release without film
This function is used to set whether the shutter is to be tripped even when the film has not been loaded. 0: No (initial setting) 1: Yes

C-26 AF beam setting

The AF auxiliary light fires automatically when the subject is too dark to perform AF, but this function can be used to prevent the AF auxiliary light from firing. 0: Fires (initial setting) 1: Does not fire
C-34 Clock/calendar setting C-31 Auto film loading setting
This function is used to set whether to feed the film (to the first frame) by halfpressing the shutter button or by closing the rear cover when the film has been loaded. The film can be fed to the first frame by halfpressing the shutter button even when the rear cover close has been established as the setting. 0: By half-pressing the shutter button (initial setting) 1: By closing the rear cover When the camera is in sleep mode, the film will not start moving even when the rear cover is closed. Half-press the shutter button. This function is used for setting the calendar and clock. For details on the setting procedure, see page 23.
C-22 Bulb shutter release setting
This function is used to set how to operate the shutter button for bulb shooting. At the 0 setting, the shutter is opened and closed while the shutter button is held down; at the 1 setting, it is opened and closed each time the shutter button is pressed. 0: While shutter button is pressed (initial setting) 1: Each time shutter button is pressed

C-35 Index setting

This function is used for setting the index numbers. For details on the setting procedure, see pages 21 and 22.

3. Return the battery holder to its case and lock it by turning the lever clockwise. Make sure it is firmly attached.
*When the batteries are spent, "batt" flashes on the main LCD and the viewfinder's LCD when the shutter release button is pressed.
When replacing the batteries, be sure to use six new batteries of the same
type. Do not mix different types of batteries or old batteries with new ones. Amount of film that can be taken with one set of batteries At normal temperature (20C), using new batteries, 120 roll film and under normal usage. Alkaline batteries : 150 rolls Lithium batteries : 300 rolls
*After inserting the batteries, set the date and time. (See page 73.)

Diopter Adjustment

Look through the viewfinder and make sure that the focus frame (Rectangle with Circle) is in sharp focus. If it is not, turn the diopter adjustment dial in the "-" direction if you are nearsighted, in the "+" direction if you are farsighted. If this is not sufficient you may require an optional diopter corrected lens. See below.
Replacing the diopter corrected lens
1. Remove the lens supplied with the finder by pulling it downward.
2. Push the replacement diopter corrected lens upward into the viewfinder's eyepiece frame until it clicks into place. *Point the camera at a bright, plain object such as a white wall when making this adjustment.
Range of adjustment of diopter corrected lenses (Optional accessory) *If there is dirt or dust on the lens surface, remove it with a blower or sweep it off gently with a lens brush. *If there are fingerprints or dirt on the lens surface, wipe it off with a piece of clean, soft gauze. *Using solvents could discolor the diopter corrected lens frame.
Attaching/Removing the Lens

Attaching

1. Remove the camera's lens opening cap, just like you would remove a lens, by pushing the lens release button A backward and then turn the lens cap or the lens itself counter clockwise and lift out.

Removing

While pushing the lens release button A, rotate the lens counter clockwise until it stops and lift it off.
To remove the front lens cap, squeeze the shiny sections together and lift out.
*After removing the lens from the camera body, protect both ends by attaching the caps. *Oil, dust, fingerprints or water on the electronic contacts could result in malfunction or corrosion. Wipe such impurities off with a clean piece of cloth.

To remove rear lens cap turn it counter clockwise.

2. Attaching the lens

Align the red alignment dot of the lens (on the shiny flange) with the camera's red dot, fit the lens into the camera and rotate it clockwise until it clicks into place. *Do not touch the distance ring or other rotating parts during the auto focus operation.
Installing the Battery in the Magazine
The button battery supplies power to the magazine's LCD when it is detached from the camera. When it is attached the power is supplied by the camera's batteries.

Setting the Film Speed

The film speed (ISO sensitivity value) is the reference for all exposure and must be set correctly. If the set value differs from the actual value of the film in use, under- or overexposure may occur.
1. Remove the battery compartment cover screw.
Use a coin or suitable screw driver and turn it counter clockwise.
1. Press the L (up) button.
When the LCD panel displays information, press and hold the L (up) button on the bottom part of the LCD for more than 1 second. The ISO indicator will blink.

2. Insert a battery.

Insert the battery according to the polarity indication + in the battery compartment, and close the battery cover. Battery used: Sony CR2032 or equivalent

2. Set the film speed.

Set the film speed of the film by pressing the L (up) or M (down) button. To lock the speed setting, press and hold the two buttons simultaneously for more than one second; the film speed will be written in memory in 5 seconds.
Be sure to watch correct polarity
*When the battery is exhausted, remove it immediately and replace with a new battery. Otherwise accidental battery fluid leakage may damage the contacts.
*The setting is not complete while the ISO indicator is blinking. *The information on the film in use, such as the type, ISO sensitivity value and number of exposures, is stored in the back -up memory. However, when the battery capacity has dropped during stand-alone use of the magazine, the information may not be shown by the LCD panel. *The information on the film (type, ISO sensitivity and number of exposures) is stored in the memory, but when the battery power is low this information may be displayed erroneously. Be sure to replace the batteries with new ones.

Attaching/Detaching the Magazine
When there are no batteries in the camera, the shutter's "Safety Retraction" feature, keeps it in the open position and the magazine's dark slide cannot be pulled out, even when it is attached to the camera. Film winding and shutter release are also blocked in this case.

Detaching

1. Insert the dark slide into the magazine.
1. Remove the camera's rear body cap and the magazine's protection cap.
2. With your thumb first push button A down and then simultaneously button B in. The magazine will separate itself from the camera body. 2. Fit the body coupler of the magazine into the bottom channel of the camera, properly centered. 3. Push the magazine against the camera body until it snaps into place. (You will instantly hear the shutter closing) *When the magazine is removed, the shutter will automatically open, as explained on the previous page, under "Shutter Safety Retraction" Film winding and shutter release are also locked.
Shutter Safety Retraction
The precision shutter blades are made of very thin hyper-duraluminum and could be damaged if unprotected. Therefore the camera is designed to automatically retract the shutter into the open position when the magazine is removed. When it is reattached the shutter automatically closes and is ready for normal function. (Batteries must be in camera).
The magazine cannot be attached or detached unless the dark slide is in place.
Automatic film advance to #1
There is no need to line up the film's paper leader start mark. The magazine automatically advances the film to the first frame (See page 22).
Loading Film in the Magazine
1. Open the back cover of the magazine.
By first pushing the button A down and then button B simultaneously.
4. Attach an empty spool to the roll-film insert.
Flip the roll-film insert's lower spool clip "SPL" away from the spool, fit an empty spool between takeup spool studs E, and return the spool clip "SPL" to the original position.

Manual Focus Mode (M)

The auto focus function can be turned off so the focus can be adjusted manually.
1. Set the focus mode selector lever to "M" (manual focus mode).
Turn the focus mode selector lever to "M" (manual focus mode). M.F. appears on the main LCD panel liquid crystal display panel.
Continuous Focus Mode (C)
This mode uses the release priority mechanism. The shutter can be released regardless of whether the G focus mark in the viewfinder's LCD is lit. The focus is adjusted continuously while the shutter release button is half-pressed. This mode is suited for moving subjects. *The focus is not locked even if the G focus mark is lit. *The shutter can be released even if the G focus mark is not lit.

2. Adjust the focus.

Turn the lens focusing ring A and adjust the focus to the subject. When the subject is in focus, the G focus mark lights on the viewfinder's LCD.
Manual focusing using the focus mark. (Focus confirmation method) With this camera, a focus mark G lights in the viewfinder's LCD when the picture is in
focus. With the shutter release button half-pressed, turn the lens focusing ring to focus on the subject. When the subject is in focus, the G focus mark lights in the viewfinder's LCD.
Subjects With Which Auto Focusing May Not Work
The auto focus function requires subject contrast. Auto focusing may not be possible with the types of subjects described below. If this is the case, either switch to the manual focus mode and focus manually or point the camera at an object the same distance as the object you want to photograph, lock the focus using the focus lock mechanism, then take the picture. (See next page)
When differences between light
In focus and shade are not clear (blue skies, white walls and other objects with no contrast)
Turn the focusing ring clockwise.
Turn the focusing ring counterclockwise.
*Use this method when shooting in the manual focus mode and when using the M645 lenses. This method can be used when the lens aperture is f/5.6 or larger.
Subjects with continuous repeated patterns (building exteriors, blinds, etc.)
Brightly shining subjects like
the sun or light sources or objects in which these are reflected (car bodies, water surfaces, etc.)
When the object on which you want to focus is far smaller than the

focus frame

Using the Focus Lock Function

If the object on which you want to focus is not in the focus frame, the camera focuses on the background at the middle. In such cases use the focus lock mechanism to lock the focus before taking the picture.
AF Supplemental Infrared Light
When the subject is dark or the contrast is low and the camera is having trouble focusing automatically, a red lamp may light on the front of the camera when the shutter release button is half-pressed. This is a supplemental light that assists the camera's auto focus function.
1. Set the focus mode selector lever to "S".
*The AF supplemental infrared light is only emitted when the focus mode is set to "S" (single focus mode). *The AF supplemental infrared light's reach is limited. It does not reach distant subjects. Range: 9 meters (when using an 80mm f/2.8 lens) *When using a bellows lens hood (sold separately) with a diameter larger than that of the lens, focus before mounting the hood.
2. Change the composition.
With the shutter release button half-pressed, move the camera to achieve the desired composition, then release the shutter.

Camera Operation Test

This is a simple way to test the camera and autofocus without film. "P" Mode is the easiest. You may use any mode but "T".
1. Set the shutter release mode selector lever to "S" (to turn the power on). 2. Remove the Dark Slide from the magazine.
3. Open the back cover. 4. Set the autofocus modeselector lever to "S". 5. Release the shutter.
This camera offers you a selection of four exposure modes program AE (automatic exposure), aperture priority AE, shutter priority AE and the manual mode.

Program AE (P)

The aperture and shutter speed are determined automatically for the optimum exposure, according to the existing ambient light. This mode is best suited for general photography, allowing the user freedom to concentrate on the subject. Turn the exposure mode setting dial and set it to "P" (program AE). *In the "X" exposure mode the lock function is activated. Press the exposure mode dial lock release button while turning the exposure mode setting dial.

Aperture Priority AE

Set the desired aperture and the camera selects the optimum shutter speed accordingly. Use the Av mode to maintain specific control over depth of field, i.e. taking portraits or landscapes. 1. Turn the exposure mode setting dial and set it to "Av" (aperture priority AE).
* In the "X" exposure mode the lock function is activated. Press the exposure mode dial lock release button while turning the exposure mode setting dial.

Shifting the Program

Use "PL to record subjects with depth using a smaller aperture (landscapes, etc.), "PH" to record moving subjects with a high shutter speed. Turn the front or rear dial to shift the shutter speed between the +1.0 EV high speed side "PH" and -1.0 EV low speed side "PL". PL =Program Low / slower (low) shutter speeds PH= Program High / faster (high) shutter speeds
2. Turn the front or rear dial to set the desired aperture. The aperture value is adjusted in 1/2 stop increments.
*If the aperture flashes on the main LCD and in the viewfinder display when the program is shifted, the proper exposure cannot be achieved. Please select a different Program mode. * When the Program mode is shifted, the aperture changes along with the shutter speed to maintain the proper exposure.
*The shutter speed value on the main LCD and in the viewfinder display will flash when photographing objects that are too bright or too dark for proper exposure. The proper exposure cannot be achieved at the present settings. Change the aperture value by turning the front or rear dial until the shutter speed value stops flashing and remains lit.

Shutter Priority AE

Set the desired shutter speed and the camera selects the optimum aperture accordingly. Use the Tv mode to maintain specific control over action, i.e. shooting sporting events or deliberately blurring your subject. 1. Turn the exposure mode setting dial and set it to "Tv" (shutter priority AE). *In the "X" exposure mode the lock function is activated. Press the exposure mode dial lock release button while turning the exposure mode setting dial.

Manual Mode (M)

Use the manual mode "M" when you desire to have complete control over shutter speed and aperture settings. This mode is also best utilized in combination with an independent hand-held exposure meter. 1. Turn the exposure mode setting dial and set it to "M" (manual mode). *In the "X" exposure mode the lock function is activated. Press the exposure mode dial lock release button while turning the exposure mode setting dial.
2. Turn the front or rear dial to set the desired shutter speed. The shutter speed value is adjusted in 1/2 stop increments.
2. Turn the rear dial to set the desired aperture. The aperture value is adjusted in 1/2 stop increments. 3. Turn the front dial to set the desired shutter speed. The shutter speed value is adjusted in 1/2 stop increments.
*The aperture value on the main LCD and in the viewfinder display will flash when photographing objects that are too bright or too dark for proper exposure. The proper exposure cannot be achieved at the present settings. Change the shutter speed value by turning the front or rear dial until the aperture value stops flashing and remains lit.

4. When the shutter release button is halfpressed, the difference between the manual settings and the metered value is displayed in the viewfinder's LCD panel. The value is displayed in 1/3 stop increments within a range of 6 EV. *For example, "+2.3" indicates +21/3EV, "-5.7" indicates -5 2/3 EV. *If the manual settings and the metered value are the same, nothing is displayed as a difference in the viewfinder's LCD panel.
*If the difference between the manual setting and the metered value is greater than 6 EV, "-u-" (under) or "-o-" (over) flashes in the viewfinder's LCD panel. *Exposure compensation cannot be used while in the manual mode. *When the difference between the manual setting and the metered value is displayed in the viewfinder's LCD panel while in the manual mode and the exposure compensation dial is set to a position other than "0", the value displayed is the difference between the manual setting and the metered value plus the exposure compensation value. This has no effect on the exposure.

X Mode (X)

This mode fixes shutter speed at the sync speed of 1/125 sec. In this position, the dials lock and cannot be rotated. (See pages 63-65.)

Time Mode (T)

This is a mechanically controlled mode for long exposures. It consumes no battery power. (See pages 55-56.) *In the "X" exposure mode the lock function is activated. Press the exposure mode dial lock release button while turning the exposure mode setting dial.
There are three exposure metering modes: "A" in which the average light of the entire picture area is measured with emphasis on the center, "S" in which the light in a spot at the center of the picture area is measured, and "A-S" which combines these two to automatically switch the mode according to the extent of difference between the brightness of the light metered in the two modes. The distribution ratio of the exposure metering modes is set within an intermediate range. See pages 45-46 for Exposure Metering modes. See page 47 for Film Advance modes.

Exposure Compensation

Average Exposure Metering Mode (A)
(Set the exposure metering mode selector lever to "A".) The average light of the entire picture area is measured, with emphasis on the center. In some situations, such as a great difference between the subject and background brightness or overall subject tones that will not meter correctly because they are all black or white, the resulting photograph may be under- or overexposed. When this occurs, use the exposure compensation function. Exposure compensation can also be used when you want to intentionally create overexposed or underexposed pictures. Turn the exposure compensation dial while pressing the exposure compensation dial lock release button A located on the right side of the viewfinder. The exposure can be adjusted within a range of 3 EV in 1/3 steps. Be sure to set the exposure compensation dial back to the "0" position once you are finished taking photos with exposure compensation.

Spot Exposure Metering Mode (S)
(Set the exposure metering mode selector lever to "S".) The light in the circle at the center of the picture area is measured to determine the exposure. This mode is best suited for strongly backlit subjects, or when you desire to measure a specific area. When the spot you want to measure is not at the center of the picture, use the AE lock function. (See pages 57-58 AE Lock Mode.)
Display of the exposure compensation in the viewfinder's LCD panel
Average/Spot Auto Switching Exposure Metering Mode (A-S AUTO)
(Set the exposure metering mode selector lever to "A-S".) With the A-S metering mode, average or spot exposure metering is selected automatically and the appropriate exposure is set accordingly. The spot mode is selected automatically when the brightness within the spot metering area is lower than the brightness of the average metering area by about 1.5 EV or greater. The average mode is selected when the spot exposure metering value is the same or brighter than the average value. When the difference between the spot value and average value is between 0.75 and 1.5 EV, the appropriate exposure is achieved at an intermediate value.
lf a polarizing filter is necessary, use a circular polarizing filter. A linear polarizing filter is not compatible with the Mamiya 645 AF and its operations.
Single-Frame Mode/Continuous Mode

Single-Frame Mode

The film is advanced one frame at a time each time the shutter release button is pressed. Set the shutter release mode selector lever to "S".

Continuous Mode

Photographs are taken continuously as long as the shutter release button is pressed. Set the shutter release mode selector lever to "C". Photographs are taken continuously at a rate of about 1.2 frames per second. If you reach the end of the film when shooting in the continuous mode, "End" flashes on the Magazine LCD panel.
The mode setting button can be used to set three modes: the auto bracketing mode, the multiple exposure mode and the self timer mode. NOTE: Each of these modes can be used independently. You cannot use these modes simultaneously.

Auto Bracketing Mode

In situations which are difficult to confidently meter for exposure, use the Auto Bracketing function. In this mode, three frames are taken successively with different exposures set automatically (overexposure, standard and underexposure). 1. Turn the mode setting dial and select "P", "Av" or "Tv". 2. Press the mode setting button A once to set the auto bracketing mode. *In the auto bracketing mode, three photos are taken in succession. Be sure to fix the camera in place, for example by using a tripod.

Automatic exposure operation in the auto bracketing mode
3. Turn the front or rear dial to set the exposure compensation steps. When the dial is turned, the exposure compensation step switches between 1/3, 1/2, 2/3 and 1 (displayed 0.3, 0.5, 0.7 and 1.0). The setting is registered after 5 seconds or when the shutter release button is pressed. 4. Press the shutter release button once. Three photos are taken successively. All exposures in the Auto Bracketing mode are made in the following order: overexposure, normal exposure and underexposure. *The auto bracketing mode is automatically canceled once the three photos are taken. *When the shutter release mode selector lever is set to "L" (power off), all the settings aside from the selected mode are reset to the default values.

Multiple Exposure Mode

With the multiple exposure mode, the same frame of film can be exposed multiple times. 1. Press the mode setting button A twice to enter the multiple exposure mode.
Canceling the Multiple Exposure Mode
To cancel the multiple exposure mode before all the additional exposures have been taken, with the dark slide removed, half-press the shutter release button while pressing the roll film holder's manual film advance button B.
2. Turn the front or rear dial to set the number of additional exposures. The number of additional exposures can be set between 1 and 5. The setting is registered after 5 seconds or when the shutter release button is pressed. *For example, when the number of additional exposures is set to "2", the same frame of film will be exposed three times, after which the film is advanced. 3. Press the shutter release button. The current frame is exposed multiple times. The multiple exposure mode is canceled automatically once the set number of additional exposures have been taken. *The multiple exposure mode mark is displayed on the main LCD panel during the multiple exposure mode. *The same frame is exposed multiple times, so exposure compensation may be required. *To check the number of additional exposures remaining during the multiple exposure mode, press the mode setting button A once. The remaining number of additional exposures is displayed on the external liquid crystal display panel. *If you wish to make more than 5 additional exposures, the number of additional exposures can be incremented during the multiple exposure mode by pressing the mode setting button A and turning the front or rear dial. *When the shutter release mode is set to "C" (continuous advance mode), once the set number of additional exposures have been taken, the camera is reset to the normal shooting mode. *To cancel the multiple exposure mode, press the mode setting button A twice. The multiple exposure mode is canceled and the camera is reset to the normal shooting mode. *When the shutter release mode selector lever is set to "L" (power off), all the settings aside from the selected mode are reset to the default values.

Time Mode

The time mode uses mechanical control, so it is best suited for extended exposures. The batteries are not used to keep the shutter open during the exposure. 1. Turn the exposure mode setting dial and set it to "T" (time mode). 2. Turn the front or rear dial to set the aperture. 3. Press the shutter release button. Determine the composition, focus, then press the shutter release button. The shutter opens.
4. Once you have achieved the desired exposure, turn the exposure mode setting dial to "X". The time exposure mode is canceled and the shutter closes.

AE Lock Mode

When the AEL button C is pressed, the exposure is locked to the value metered at that time. Use this when the object you want to use for exposure metering and the object on which you want to focus are different or when you want to take continuous photographs without changing the exposure. 1. Set the shutter release mode selector lever to S. 2. Turn the exposure mode setting dial and select "P", "Av" or "Tv". 3. Focus on the object you want to use for exposure metering, then with the shutter release button half-pressed Press the AEL button C once on the rear of the grip. [ ] appears on the viewfinder's liquid crystal display panel, indicating that the exposure is locked. 4. With the shutter release button still halfpressed, aim the camera to achieve the desired composition, then release the shutter.
*If the difference between the set value and the metered value exceeds 6EV, "-u-" (under) or "-o-" (over) flashes on the viewfinder's liquid crystal display
*When the shutter release mode is set to "S" (single-frame advance mode), the AE lock mode is canceled when the shutter release button is pressed. If you wish to take a series of photos using the AE lock function, switch the shutter release mode to "C" (continuous advance mode). *To cancel the AE lock mode before taking a photo, press the AEL button C again. *The focus is locked in "S" mode when the shutter release button is half-pressed. *When the AEL button C is pressed in, the difference between the metered exposure and exposure with the new composition is displayed in the viewfinder's LCD panel. *The AE lock mode is canceled 5 seconds after the AEL button C was pressed.

Metz Flash SCA3951 System Functions
Depth of Field Preview/Eyepiece Shutter
Flash Photography with Flashes other than Metz Flashes
1. Mount the flash onto a flash bracket or if it is a handle-mount style flash attach to the bottom of the camera. Do not attach a dedicated flash unit to the camera's hot shoe that is not designed specifically for the Mamiya 645AF. To use this type of flash, use a flash bracket or other means, and connect the synchro cord to the camera's synchro terminal. (See note below about flashes designed exclusively for other camera makes.) *Remove the rubber cover when connecting the synchro cord. After shooting, be sure to attach the rubber cover in order to protect the synchro terminal's contacts.
Depth of Field Preview Button
When the preview button is pressed in, the depth of field for the aperture set on the camera can be checked by looking through the viewfinder.
After focusing, press in the preview button.
When using auto focus, the aperture is set to the displayed aperture while the button is pressed and the focus is locked.

Eyepiece Shutter

2. Turn the exposure mode setting dial and set it to "X" (1/125 sec.) or "M" (manual). When "M" (manual) is selected, turn the front dial and set the shutter speed to 1/125 sec. or less. 3. Turn the rear dial to set the aperture, then take the picture. *This camera's synchro contact is an X contact. *When using MF or M grade flash bulbs, set the shutter speed to 1/30 sec. or less for MF grade flash bulbs, 1/15 sec. or less for M grade flash bulbs. Use this when there is a strong light source behind the camera or when pressing the shutter release button without looking through the viewfinder. (This prevents exposure error due to light entering from the viewfinder.)
Turn the eyepiece shutter lever in the direction of the arrow.
WARNING Using flashes designed exclusively for other makes of cameras may
damage the camera's internal mechanisms if connected to the camera's hotshoe. In this situation, use an off-camera flash bracket and connect a PC cord to the camera's synchro terminal. *When using flashes with a flash duration of 1/500 sec. or longer, set the shutter speed to 1/30 sec. or less.
Changing The Focusing Screen
1. Remove the lens. 2. Slide the Focusing Screen Release lever A forward, as illustrated, to the left with the tweezers to let be Focusing Screen down.
Using the M645 Manual Focus Lenses
When using the M645 manual focus lenses, mount the exclusive viewfinder screen #314474 (sold separately) and set the focus mode to "M" (manual) to enable shooting with stop down metering. 1. Mount the M645 lens to the body, set the focus, then set the lens' A/M lever to "M". Focus confirmation is given in the viewfinder's LCD panel. 2. Select the exposure mode and set the desired lens aperture. (See chart below). 3. Half-press the shutter release button. The shutter speed is displayed.

* This information is based on a linear (horizontal/vertical) measurement. Specifications and features are subject to change without notice.

Camera Type

: Electronically controlled vertical metal focal-plane shutter. (vertical travel) Shutter speed : AE 30 to 1/4000 sec. (1/8 step), manual 30 to 1/4000 sec. (1/2 step), X, B (Bulb, electronically controlled), T (time, mechanically controlled), emergency shutter curtain open mechanism (open when magazine is removed, automatically closed when magazine is attached) Auto-Bracketing : Enabled with Mode button, 1/3, 1/2, 2/3, 1-step units Flash Synchronization : 1/125 sec., automatically sets to 1/125 at faster speeds, synchronized to displayed speed at slower speeds (when Metz flash unit is used) Flash control : TTL direct metering, supports Metz SCA3000 system (SCA3951 Adapter) Film transport : Automatic via built-in motor, single or continuous exposures Film loading : Automatic advance to first frame when shutter release button is pressed once (Easy Loading) Multiple Exposure : Enabled with Mode button (1 to 5 exposures); can be cancelled Main LCD panel : On camera body; shows aperture value, shutter speed value, self-timer, BL (Backlight), battery check, multiple exposure, programmed AE or programmed AE shift value, data imprinting Interchangeable Film Magazine: ISO speed, type of film (120/220), exposure number Data Imprinting : 7 segment dot matrix; DATA mode: exposure mode, aperture value, shutter speed value, exposure compensation, metering mode, ID number; DAY mode; year, month, date, time, ID number Switchable between enabled and disabled Sync terminal : X contact (sync speed 1/125 sec.) Cable release socket : On shutter button Remote-control terminal: On side of body; electromagnetic cable release Self-Timer : 3 to 60 sec. (standard: 10 sec., can be set in 1 sec. steps between 3 and 10 sec., and in 10 sec. steps between 10 and 60 sec.) Depth-of-field confirmation : Preview Button on body Tripod Socket : U 1/4 inch and U 3/8 included Power Requirements : 6 AA-size batteries (alkaline-magnesium, lithium) Size : 153(W)X128(H)X184(D)mm : 1,730g(w/o battery) Weiqht

Shutter

Common Sense Camera Care and Practice
The Mamiya 645 AF is a precision optical/mechanical instrument, built for heavy professional use and a long service life, if properly treated and maintained. Please observe these basic caveats: Read instructions before using camera. Protect camera against shocks and falls. Use the neck strap supplied with it, whenever possible.

After-Sale Servicing

*Be sure to read the terms and conditions in the warranty card. 1. For inquiries, opinions or questions concerning the product, please contact your nearest Mamiya agent or service center. 2. Servicing after the expiration of the period specified in the warranty card (one year after the date of purchase) will be charged to the user. The freight and transport costs should always be paid by the user. 3. The servicing parts for use in repair of the product will be retained at the factory for ten years from the date of discontinuation of production.

Liquid Crystal Display

All displays on the liquid crystal display consist of "8" and the number of places is limited. For this reason, some letters and words are abbreviated.
O The servicing is available for the same period as the servicing part retention period. As the product may be serviceable even after this period, please consult your dealer or nearest Mamiya service center for the serviceability.
*Servicing of malfunction or damage due to dropping, impact, fire, flood, etc. 1) The degree of such a malfunction or damage will be judged by the Mamiya service department. 2) Such a malfunction or damage will be classified either non-serviceable or serviceable. When the product is classified to be serviceable, it will be repaired at the expense of the user, even if the malfunction or damage occurred within the warranty period.
Specifications and appearance are subject to change without notice.