Congratulations on your purchase of the Mamiya 645 AF Camera.
Mamiya pioneered the 645 SLR system camera three decades ago and the Mamiya 645 AF, with its TTL auto-focus, auto-exposure, auto-flash and autofilm winding features, is the latest Mamiya master piece and reflects its long tradition of medium format camera expertise.
Special Advice To Professional Photographers
Your Mamiya 645 AF 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 by the Mamiya distributor in your country.
Combining 35mm handling ease and speed with the advantages of an almost 3x larger image size, it is a full-featured camera, utilizing many digital controls, LCD displays and is ready for the age of digital photography.
Its high-tech focal plane shutter with speeds to 1/4000 sec. permits sync flash 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 diecast 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 bottom of page 37 how the camera can be tested without film.
Names of Parts and Functions

Hot shoe (Page 63)

Exposure compensation dial lock release button (Page 46) Exposure compensation dial (Page 46)
Exposure mode dial lock release button (Page 39) Exposure mode setting dial (Page 39) Auto focus supplemental infrared light emission window (Page 36) Strap lug (Page 80)
Exposure metering mode selector lever (Page 45)
Rubber eye piece Diopter adjustment dial (Page 13)

Dark Slide (Page 20)

Magazine release button (Page 20) Magazine cover release button (Page 21)
Eyepiece Shutter Lever (Page 66) Main Liquid Crystal Display (LCD) (Page 6)
Magazine cover lock button (Page 21) Rear dial (Page 71) Magazine lock button (Page 20) Strap mount (Page 80) Synchro terminal (Page 65)

Front dial (Page 71)

Mirror up lever (Page 59)
Lens Release Button (Page 15) Shutter release mode selector lever (Page 47) Depth of field preview button (Page 66)
Auxiliary release socket (Page 80)
Congratulations on your purchase of the Mamiya 645AF and welcome to the world-wide family of happy Mamiya camera owners!
Diopter adjustment lens (standard accessory) (Page 14) Dark slide storage pocket (Page 20) Film box tab pocket Screw cap for battery compartment for magazine LCD (Page 17) External power socket (Page 69) Battery case lock lever (Page 11)

Main Liquid Crystal Display (LCD)
Superimpose mode shooting data (Page 75) Superimpose mode calendar and index number (Page 73) Shutter time (seconds) (Page 41) Self timer mode mark (Page 53)
Multiple exposure mode mark (Page 51) Auto bracketing mode mark (Page 49)
Index mode (Page 74) Manual focus mode (Page 32) Battery power indicator (Page 12)
Program mode (Page 39) Battery case (Page 11) Tripod socket (Page 80)
This diagram is for explanatory purposes. The actual display may differ.
Aperture (Page 40) Program shift indicator (Page 39) Dial lock indicator (Page 72)
Magazine LCD Panel (Page 6) Down button (Page 18)
Mode setting button (Page 49) BL button (Page 56)

Magazine LCD

Film sensitivity - ISO 25 to 6400

F1 key

( Pages 72,75 and 77)
Film type display - 120 or 220 SET button (Page 72) Number of photos display

Contents

Viewfinder with LCD read-outs on bottom
Names of Parts and Function..3~ 5 Main Liquid Crystal Display...6 Magazine LCD...6 Viewfinder with LCD read-outs on button..7 Basic Operation...10~ 29 Inserting the Batteries..11 Checking the Battery Power...12 Diopter Adjustment...13 Replacing the diopter corrected lens..14 Attaching / Removing the Lens.. 15~ 16 Installing the Battery in the Magazine..17 Setting the Film Speed...18 Attaching / Detaching the Magazine..19~ 20 Loading Film in the Magazine...21~ 23 Shutter Release Button / Holding the Camera..24 Taking Photos in the Full Automatic Mode.. 25~ 28 Removing a partially exposed film roll... 29 Auto Focus Function..30~ 36 Single Focus Mode..31 Continuous Focus Mode... 31 Manual Focus Mode...32 Manual focusing using the focus mark..33 Subjects With Which Auto Focusing May Not Work..34 Using the Focus Lock Function...35 AF Supplemental Infrared Light... 36 Camera Operation Test...37 Exposure Modes...38~ 43 Program AE...39 Shifting the Program...39 Aperture Priority AE...40 Shutter Priority AE...41 Manual Mode...42~ 43 X Mode...43 Time Mode...43 Exposure Metering and Film Advance Modes..44~ 47 Average Exposure Metering Mode.. 45

Autofocus area frame

AE lock display
Exposure compensation mark Exposure compensation value display - displays the difference between the setting and the metered value when in the manual mode

Flash charge indicator

1. Lift the battery case lock lever, turn it counter clockwise and pull out the battery holder. The batteries are sufficiently charged.
There is little power remaining. Have new batteries on hand. Camera will still operate. 2. Insert fresh batteries with the + and - ends as shown in the drawing.
Be sure the batteries are placed with

proper polarity

There is very little power remaining. Camera will not operate. *Set the shutter release mode selector lever to "L" (to turn the power off) and replace the batteries with new ones.
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.

5. Set the film.

Flip the roll-film insert's upper spool clip "FILM" away from the spool, fit a roll of film as shown in the illustration, and return the spool clip "FILM" to the original position.
When you load film for the first time, remove
and discard the protective paper cover which is attached to the film rails in the magazine.
3. Set the film type (120 or 220).
Push and hold the pressure shaft D located under the 645 center block. This frees the pressure plate and permits it to be turned and set for either 120 or 220 film.
Be sure to align the lock pins with the holes on
the pressure plate. The film type should be displayed when the film is loaded on the LCD of the magazine.
6. Attach the leader paper of the film to the empty spool.
Gently pull out some of the leader paper, insert the tip of the leader paper into the take-up slot of the empty spool, and rotate the spool a few times to wrap the leader tape around it.
When the pressure plate (120/220) is set erroneously:
Shutter Release Button/Holding the Camera
7. Insert the loaded film insert into the magazine.
While squeezing the center latches together, place the film insert, with the feed spool on top, in the magazine and with pressure on the left and right blocks G push it into proper position. (You will hear a click).

Shutter Release Button

The shutter release button has a two-step action, A half-press (light pressure) will activate the camera, heavier pressure will release the shutter. When pressed lightly it stops at a certain point. In this manual this position is called the "half-press" position. When half-pressed, the power turns on and the camera becomes functional.

8. Close the back cover.

Push in the upper part of the back cover firmly to close it. 9. After attaching the magazine onto the camera body, pull out the dark slide and press the shutter button halfway; this will feed the film automatically to frame No. 1. Place the dark slide in the magazine's rear storage pocket *It is not required to align the film start mark, for the magazine will automatically detect film frame No. 1 from any position. *When the magazine is mounted on the camera body, the mirror and shutter which has been freed will be set in position. *Do not wrap too much leader paper around the empty spool. Otherwise the film section may be exposed to light. *When the magazine is separated from the camera, the power save mode is activated in 5 seconds after the start of stand-alone operation and the LCD panel turns off. To release the power save mode and turn on the LCD panel, press the L (up) button. *To prevent accidental film fogging, do not pull out the leader paper too far or load/unload film under direct sunlight. *When the film is not wound properly, the counter display disappears and the --" mark appears in the LCD.

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.)

*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.

When the aperture is large (the subject depth is small)
When the aperture is small (the subject depth is large)
*Use a red filter when taking photos using infrared film. *Be sure to read the infrared film's usage instructions.

Flash Photography

In addition to its standard flash sync system, the Mamiya 645 AF features TTL (through the lens), off the film (OTF), electronic flash exposure automation. 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 AF's dedicated hot-shoe to a shoe- or handle-mount style Metz flash unit via the Metz SCA 3951 TTL Adapter. Maximum flash sync speed is 1/125 sec., making daytime syncronization 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 3951 Module is required. Please see chart below for compatibility and/or additional adapters that may be necessary. The resulting flash exposure automation determines correct flash exposure andautomatically adjusts the output of the flash. It also automatically corrects for exposure compensation normally required when using filters, close-up bellows or extension 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 645 AF's Film Magazine ISO setting. 1. Mount the SCA3951 adapter onto the Metz flash, insert fully into the camera's hot shoe, then tighten with the fixing knob A 2. Set the exposure mode, then check the shutter speed and aperture. *The shutter cannot be released if the flash's OK lamp is lit. *When using an SCA300 system flash (Metz 60CT-4,45CL-4, etc.), also use the SCA3000C converter (sold separately). *For details, refer to the operating instructions of the flash and the adapter. *To use the guide number indicated on the flash fully, emit the flash several seconds after the charging completed indicator lights. *Cautions on using instant film Instant film (Polaroid 100-600 series and Fuji FP series), has a lower reflection rate than regular film. Exposure compensation is necessary when using the flash in the TTL mode. In general, set the exposure compensation to about 1 or 1 1/3 EV on the minus side. *With TTL flash photography, the reflection of the flash is metered and the intensity of the flash is adjusted automatically, so TTL flash photography is not necessarily suited to all conditions. In the cases described below, we recommend that you use a flash meter to check the intensity of the flash or to use a manual flash setting. For example: (1) When the size of the subject you want to light with the flash is relatively small within the picture (2) When the background behind the subject is extremely bright or when there is a strongly reflective object in the background (3) When the background behind the subject is extremely dark (outdoors at night, etc.) (4) For flash photography with a narrow latitude film

3. Remove the Focusing Screen from the Focusing Screen Frame by grasping the tab on the edge of the screen with tweezers as illustrated.
4. In case of attaching, insert your desired Focusing Screen to the Focusing Screen Frame properly and then raise the frame until it clicks.
*With the M645 lens, adjust the exposure by using stop down metering in the Av exposure mode. The proper exposure cannot be achieved in the "P" (program AE) or "Tv" (shutter priority AE) exposure mode. *When the M645 lens is mounted, the exposure metering mode is automatically set to "S" (spot exposure metering). *Focusing using the focus mark is possible when the lens brightness is F5.6 or brighter.

Caution

*Since the Focusing Screens' surfaces are soft and easily damaged, handle them carefully. *Never touch the surface with bare fingers. Should dust settle on it, merely blow away by using a blower. *If the Focusing Screen needs cleaning, send it to the nearest authorized Mamiya service center. Do not attempt to clean the surface of the Focusing Screen, as it is very delicate.

External Power Supply

When using an external battery case for cold weather operation (sold seperately), connect it to the external power socket. 1. Set the shutter mode selector lever to "L".
2. Remove the cap. Use a coin, etc., to remove the external power socket's cap. 3. Remove the batteries from the camera's battery case. Turn the battery case detach lever, remove the battery case, remove the batteries, then re-insert the battery case into the body and lock the battery case lever again.
4. Connect the power cord from the external battery case to the external power socket.
*Be sure to attach the battery case to the body. *The camera will operate even if the batteries are not removed from the battery case, but remove them for the safety of the camera's body.
Electronic Dial Operations
Front/Rear Dial Lock Mechanisms (select "dLoc")
When the Electronic Dial Lock is "On", all currently set values in "Av" (Aperture Priority AE), "TV (Shutter Priority AE) and "M" (Manual mode) cannot be adjusted with the front or rear dials. This prevents accidental adjustment of shutter speed or aperture values. 1. Set the shutter release mode selector lever to "S" (to turn the power on).
3. Turn the front or rear dial and select "dLoc".

to register the setting. When the dial lock is turned on, "L" is displayed on the external liquid crystal display panel. *When a dial is turned while the electronic dial lock is on, L flashes for 3 seconds as a warning.
Superimposing Data (the data is superimposed on the
film outside of the image area) This function allows you to superimpose exposure or date information on the film outside the image area. When selected, the superimposing mode is displayed on the main LCD.

Setting the Index Number

1. Set the shutter release mode selector lever to "S" (to turn the power on). 2. Press the F2 Key for about 2 seconds, then turn the front or rear dial to display "SEt 2" on the main LCD panel.
Setting the Date and Time
1. Set the shutter release mode selector lever to "S" (to turn the power on). 2. Press the F2 Key for about 2 seconds. "SEt 1" appears on the main LCD panel.
3. Press the F2 Key again, then use the front and rear dials to set the date and time. When the front dial is turned clockwise, the position switches between the month, day, year, hours and minutes (the selected position flashes). Turn the rear dial to set the value.
3. Press the F2 Key again, then use the front and rear dials to set the desired index number (3 digits). When the front dial is turned clockwise, the position switches between the first digit, second digit and third digit (the selected position flashes). Turn the rear dial to set the value.
When the front dial is turned clockwise When the front dial is turned counterclockwise 4. After setting the index number, press the SET Button for about 2 seconds to register the setting. *The index number is displayed as a 3-digit number. Data on the number of photos taken is stored in the camera, so the numbers of the photos continue to increment when the magazine is removed and replaced with a different magazine. This function is convenient for managing large amounts of film. *The starting index number can be set at will. For example, when shooting in different places or for different purposes, you can classify the photos by changing the starting number any of the digits. *Once the total number of photos taken reaches 999, counting starts over from 001. 000 can also be set using the index number setting procedure. *After 60 seconds or when another priority button is pressed, the index number setting mode is canceled and the setting is not registered in memory. * Custom settings remain in the memory even when the shutter release mode selector lever is set to "L' (turning the power off).

4. After setting the date and time, press the SET Button for about 2 seconds to register the setting. *Check the date and time after replacing the batteries or using an external power supply, and adjust as necessary.
Selecting the Data to be Superimposed (select "Func")
There are two data modes which will superimpose information onto the film. If you do not desire to superimpose any information, this function may also be switched off. 1. Set the shutter release mode selector lever to "S" (to turn the power on). 2. Press the F1 Key for about 2 seconds to display "Func" on the main LCD panel, then press the F1 Key again.
4. Display the desired data superimpose mode on the external liquid crystal display panel, then press the SET Button for about 2 seconds. The setting is registered and the desired data superimpose mode is displayed on the main LCD panel.
Checking the data to be superimposed
The data to be superimposed switches in the following order each time the SET Button is pressed: Date (year, month and day) -Time - Index number
3. Use the front and rear dials to select the data to be superimposed (DATA or DAY). The mode of data to be superimposed changes when the front or rear dial is turned clockwise.
*The display on the main LCD panel returns to normal when the shutter release button is half-pressed or when another priority button is pressed.
Data superimpose modes DATA:
The exposure mode, aperture, shutter speed, exposure compensation value, exposure metering mode and index number are superimposed.
The date (year, month and day), time and index number are superimposed.
The data superimpose function is turned off.
This illustration is for explanatory purposes. The actual display may differ.
Changing the Viewfinder Display in the Manual Mode"M" (select 'Fd")
When the exposure mode setting dial is set to "M", it is possible to display only the focus marks and flash charge mark in the viewfinder's LCD panel. This is useful when exposure settings will not change, and this information in the viewfinder could be otherwise distracting. 1. Set the shutter release mode selector lever to "S" (to turn the power on). 2. Press the F1 Key for about 2 seconds to display "Func" on the external liquid crystal display panel.

Error Messages

This is displayed for 3 seconds when the end of the film is reached while shooting in the "C" (continuous advance) shutter release mode.
This is displayed when the shutter release button is pressed while the mirror is up when the exposure mode is set to "P" (program AE), "Av" (aperture priority AE) or "Tv" (shutter priority AE). This is displayed when auto bracketing does not function, as follows: When the shutter release button is pressed while the exposure mode is set to "M", "X" or "T", this is displayed, the shutter is not released and the auto bracketing mode is canceled. When the shutter release button is pressed while shooting with the exposure mode set to "Av", "Tv" or "P" and there are fewer than three frames of film left, this is displayed, the shutter is not released and the auto bracketing mode is canceled. If the magazine is removed while the multiple exposure mode is set, this is displayed and the multiple exposure mode is canceled after the magazine is replaced on the camera.

Batteries Care

Check the battery frequently and always carry spares. The sealed battery supplied with the camera may have been subject to storage conditions which have reduced its service life. Be sure to wipe battery contacts before installation and watch correct polarity. Battery life differs, depending on frequency of use, type, age, storage condition, ambient temperature (use External Battery Case in very cold weather), etc. Always remove the battery (and film) when camera is not used for a period of time. Always keep covers on lenses and camera body. Do not store the camera at temperatures exceeding 40C (105F) and -10C (15F). Also avoid humid or sea air environment. Prolonged disuse shortens camera life. Periodically exercise the shutter (at different speeds, lens diaphragms and focusing mounts. Protect camera against rain and moisture. Do not touch lens surfaces. Use blower or lens tissue to remove dust particles. Always test your equipment before going on important assignments. 4. Battery life differs, depending on type, age, storage condition, ambient temperature, frequency of use etc. 5. Be sure to match the poles of the battery with those shown in the diagram in the chamber. 6. Always keep batteries out of the reach of children and never throw used batteries into a fire or expose to excessive heat. 7. When going on trips be sure to carry spare batteries to ensure that the camera will function. Also, as batteries tend to temporarily malfunction at temperatures below freezing, when photographing in extremely cold climates, carry the External Battery Case. 8. When you carry spare batteries, leave them in the original factory packaging. If they are "unpackaged", be sure to wrap them carefully in order to prevent them touching each other or any metal objects which can cause them to short circuit and become useless. 1. The sealed, new battery which is supplied with this camera may have been subject to storage conditions which have reduced its service life. Therefore it is desirable to replace it with a fresh battery as soon as possible. 2. Carefully wipe the battery contacts before inserting into the chamber. Failure to do so may result in poor electrical contact and consequent malfunctioning of the camera. 3. Always remove battery when camera is not used for a while. Always carry spare batteries.

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.

Be sure to insert the battery with the correct polarity

Batteries Care

1. Battery life of the originally supplied batteries is dependant on storage conditions. 2. Blots and fingerprints on terminals may cause loose connection and corrosion. Wipe them off before loading the batteries. 3. It is advised to carry spare batteries in remote or foreign locations. 4. Battery performance decreases in low temperatures. Keep them warm when in cold climates or locations. External battery case PE401 is available as an optional accessory. 5. Store the batteries in a cool and dry place, away from direct sunlight. 6. Remove the batteries from the camera body when they will not be used for a long time. 7. Replace the batteries with new ones as soon as they are exhausted. Liquid leakage from the battery may damage the camera. 8. Read the label warnings of the batteries for their handling.
When the magazine is installed onto the body, the power will be supplied to the magazine from the camera body. You can take shots without installing the battery into the magazine. However if you , remove the magazine from the body, the magazine does not indicate film sensitivity or number of shots. The magazine does not have a battery level indicator. When the magazine LCD panel becomes dark or disappears, replace the battery. As a rough guideline, the battery should last approx. one year.
Attaching and Removing a Lens

Attaching

m 80m 8 1:2
2. Attaching the lens 1. Remove the front body cap, just like you would remove a lens, by pushing the lens release button backward and then turn the front body cap or the lens itself counter clockwise and lift out.
Line up the lens mount alignment mark B with mark C on the camera to fit the lens in place, then rotate it in the direction of the arrow until it clicks into place.
Do not touch the distance ring or other rotating parts when attaching the lens.
To remove the front lens cap, squeeze the shiny sections together and lift out.
When installing a lens, do not press the lens release button

Removing

While sliding the lens release button back , rotate the lens counter clockwise until it stops and lift it off.
T remove rear lens cap turn it counter clockwise. o
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.

4. Attach the empty spool to the roll-film insert.
Flip open the backing plate E of the lower compartment, fit an empty spool to the bearing, and push the backing plate F back to the original position.
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

2. Set the focus mode selector lever to S (single focus mode).
There are three focus modes: S (single focus mode), C (continuous focus mode) and M (manual focus mode).

Program AE

Av Tv M
Aperture priority AE Shutter priority AE Manual mode
4. Exposure metering mode is automatically set to average/spot exposure metering before exposure metering is performed.
Focus mode S Single focus mode Continuous focus mode Manual focus mode Focusing Half-press the shutter release button to focus. When the focus mark lights, the focus is fixed and the shutter can be released. (See page 43.) The camera keeps focusing continuously while the shutter release button is half-pressed. The shutter can be released regardless of whether or not the focus mark is lit. (See page 43.) Focus manually. (See page 45.)
There are three exposure metering modes: In the A mode the average brightness in the entire frame is measured with emphasis on the center of the frame. The brightness at a specific spot in the center of the frame is metered in the S mode. The A-S mode automatically switches between these two modes depending on the contrasts in the picture. (See page 61.)
Taking Photos (continued)
Shutter Release Button / Holding the Camera

Shutter Release Button

. The shutter release button has a two-step action. When pressed lightly it stops at a certain point. In this manual this position is called the half-press position.When you half-pressed this button, camera functions are activated.When the shutter button is pressed further down, the shutter is tripped. This position is called the release position.

5. Focus

1. Aim the camera so that the subject is within the focus frame
Normal 2. Half-press the shutter release button, and focus will be adjusted automatically.

Half-press

Release position

Holding the Camera

When the focus mark 3. When
lights, the picture is in focus. Horizontal Vertical
lights, press the shutter release button further down to release the shutter. Hold the camera still when taking photos to obtain sharp pictures.

Out of focus Marks Flashing: The picture is not focused and the shutter cannot be released. Either press the shutter release button again to adjust the focus or move the camera to change the position of the focus frame.
While the camera is operated in the auto focus mode, lenses not equipped with the focus mode selector ring (45, 55, and 80 mm lenses) turn their focusing rings automatically to focus. Do not touch the focus ring.
Grasp the grip firmly, press your both elbows against your body and support the camera at the bottom with your left hand. At slow shutter speeds, or when using the self timer, it is best to use a tripod and a cable release or an electromagnetic cable release (Optional accessories).
Removing a Partially Exposed Roll of Film
1. Insert the dark slide in the magazine.
6. Unloading the exposed film.
When the roll of film is completely exposed, the camera automatically advances the film completely to the end. The LCD panel displays End.

1. Open the back cover.

Hold down the button A and press the button B to the right.
2. Remove the roll-film insert.
Pinch the knobs C of the roll-film insert in the film chamber with your fingers and take out the rollfilm insert. 2. Press the shutter release button and the emergency film wind button A simultaneously. The film will be advanced to the end and the magazines LCD panel will show End.

3. Remove the film.

Push down the backing plate D away from the spool, and take out the film roll.
4. Seal the film with the film tape.

Film Tape

Secure with the provided film tape so that the roll will not come loose.
You can smoothly load the next roll of film, if you move the empty spool to the lower compartment (printed SPL). For the procedure to remove the film before reaching the end of the film, see page 40.
Caution: Checkpoints for film removal
Do not unload an exposed film in direct sunlight. After the film has been removed from the inner frame, do not wind the film tightly. Otherwise, pressure marks may be remain on the film. Put the used film inside a light-proof bag, box or other container, and take it as soon as possible to the developers. Never detach the magazine from the camera body in the middle of film winding.

Electrical Contacts

Oil, dirt, fingerprint, or moisture on the electrical contacts may cause malfunction or corrosion. Keep the contacts clean with a dry clean cloth.
Advanced Photography and Various Functions
This chapter describes various functions of the camera.

Focus Modes

Single focus mode (S)
This mode uses the focus-priority mechanism. The shutter can be released when the focus mark in the viewfinder is lit. This mode is suited for still subjects. Focus is locked when the focus mark lights in the viewfinders LCD.
The shutter cannot be released if the subject is not in focus (if the focus mark does not light). To take another photo with a different composition, take your finger off the shutter release button then press the shutter release button again.

3 Subjects with continuous repeated patterns (building exteriors, blinds, etc.)
4 Extremely backlit reflective subjects (car bodies, water surfaces, etc.)
5 When the subject is far smaller than the focus frame You can set the camera so that only the focus mark is displayed. Custom settings (C-18 on page 94)
Using the Focus Lock Function

AF Assist Infrared Light

When the subject is dark or the low-key and the camera fails to auto-focus, a red lamp may light on the front of the camera when the shutter release button is half-pressed. This is a light that assists the cameras auto focus function.
If the object that you want to focus on is not in the focus frame , the camera focuses on the background at the center. In such cases use the focus lock function to lock the focus before releasing the shutter.
1. Set the focus mode selector lever to S or C.
Put the subject in the focus frame press the shutter release button. and half-
The AF assist infrared light is emitted only when the focus mode is set to S (single focus mode). Effective range of the AF assist infrared light is limited. It does not reach distant subjects. Range: 9m/29.5 ft. (using 80 mm f/2.8 lens under our test conditions) When using a lens hood or a bellows lens hood (sold as an optional accessory) that may interfere the assist light, set focus before mounting the hood.

2. Lock the focus.

When the focus mark in the viewfinder LCD is lit, press the AF lock button on the front of the camera to lock the focus.
The AF assist infrared light can be disabled. Custom settings (C-26 on page 95)
3. Adjust the composition.
With the shutter release button half-pressed, slide the camera to achieve the desired composition, and release the shutter.
When the focus mode is set at S (single fofocus mark is lit, hold cus mode) and the the shutter release button halfway down to lock the focus.
1. Assignment of the AEL and AFL buttons can be swapped. Custom settings (C-15 on page 94). 2. You can set the camera so that when the AFL button is pressed, AF is activated and AF lock is performed Custom settings (C-19 on page 95)

Drive Modes

Single-Frame Mode
The film is advanced by one frame each time the shutter is released. Set the shutter release mode selector lever to S.

Self-Timer Mode ( )

In this mode, the shutter will be released 10 seconds after the shutter release button is pressed.

ft m 8

Turn the shutter release mode selector lever to the " " position. When the shutter release button is pressed, the self timer lamp will blink for 7 seconds. Then, it will blink more rapidly for 3 more seconds and the camera releases the shutter. For instructions about the self timer function, see page 77.

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 2 frames per second. If you reach the end of the film when shooting in the continuous mode, End flashes on the LCD panel of film holder.

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.

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

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.
4. Focus the subject, and determine composition and exposure. 5. The mirror moves up when the shutter button is fully pressed.
6. Press the shutter button again to take pictures.
Auto bracket exposures can be made when the auto bracket mode is set before taking photos with mirror up. The mirror goes back to the normal position in 30 seconds. This can be changed to 60 seconds or no limitation by the custom setting function. (See page 93) Note that keeping the mirror up consumes more power. The mirror will return to the original position if the lens is removed from the camera body.
Do not point the lens at the sun during the mirror up mode. The suns intense light can scorch and damage the shutter curtain.
Electronic Shutter Release Contact / Eyepiece Shutter
Electronic Shutter Release Contact
For mirror-up, long exposure, or slow shutter shooting, use the magnetic cable release RE401 or the remote control RS402 for remote shooting. The assisting release contact is to insert the cable. When use, take the cover off from the contact and please do not misplace the cover.

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.
Releasing self timer mode
1. Press the self-timer button to set self timer mode. 2. Turn the front dial to "OF."
To release the self timer while it is operating, turn off the power (by setting the drive dial to "L"). When there is bright light source behind the camera or when you press the shutter button without looking through the viewfinder, light may enter from the viewfinder's eyepiece, adversely affecting the exposure metering. Turn the eyepiece shutter open/ close knob to close the eyepiece shutter, then take the pictures. (page 75.) When releasing the shutter, or pressing the backlight button A / while the backlight is on, the backlight will go OFF. When operating the camera while the backlight is on, the backlight will light on for approximately another 10 seconds.
2. Turn the front dial to select bulb, then turn the rear dial to set the aperture. 3. Determine the composition, focus, then take the picture. The shutter remains open as long as the shutter release button is pressed.
1. Normally the camera can take a picture with a bulb shot up to 60 minutes. However, the bulb shot time can be changed from one minute to infinity. Custom settings (C-21 on page 95) 2. It is possible to set the camera so the shutter remains open until the Custom settings (C-22 on page 95) button is pressed once again.
The backlight can be set to turn on during the cameras metering retention period. Custom settings (C-06 on page 93)
Front / Rear Dial Lock Function
When the Electronic Dial Lock is On, all currently set values in Av (Aperture Priority AE), Tv (Shutter Priority AE) and M (Manual mode) cannot be adjusted with the front or rear dials. This prevents accidental change of shutter speed or aperture values.
Depth of Field / Depth of Field Preview

Depth of Field

Depth of field (D.O.F.) is defined as the zone of sharpness before and behind the plane of focus. It depends on distance to subject, focal length of lens, aperture setting and distance the lens is focused at. In addition to visual observation via the depth of field preview button, the D.O.F. can be determined by using the depth of field scale on each lens. The f/stop numbers appear on both the right and left side of the white index mark in the center of the scale. Simply read the figures which appear above the f/stop numbers on the distance scale of the lens. (see illustration below)

Automatic setting of flash synchronizing speed
1. While in the P or Av modes, the camera can be set to release the shutter at the metered value, even if the background behind the subject is dark. Custom settings (C-24 on page 95) 2. The sync. speed in the X mode can be set between 1/40 and 1/125 seconds. Custom settings (C-23 on page 95)
* When the shutter speed is set to 1/2 increments, the sync. speed can be set between 1/45 and 1/125 seconds.
Flash confirmation Auto zoom control Auto AF assist beam Display of flash range (distance) Data transfer

Rear Curtain Sync Mode

When a moving subject has been shot under this function, the flash of light appears after the moving subject.
When using an SCA300 system flash (Metz 60CT-4, 45CL-4, etc.), use the SCA3000C converter (sold separately). For details, refer to the operating instructions of the flash and the SCA adapter. To use the guide number indicated on the flash fully, wait several seconds after the charging completed indicator lights. Cautions on using instant film Instant films (Polaroid 100-600 series and Fuji FP series), have a lower reflectivity rate than regular film. Exposure compensation is necessary when using the flash in the TTL mode. In general, set the exposure compensation to about minus 1 or 1 1/3 EV.

Rear curtain sync mode

Front curtain sync mode
This function is set by Custom function setting. Custom setting (C-27 on page 95)
Flash Compensation Settings
By combined use of a Metz flash and the SCA3952 adapter, the camera adjusts for flash. It can be adjusted within 3EV in increments of 1/3 steps. 1. Turn on the power Install the SCA3952 adapter on the Metz flash, and put it on the camera then lock the flash in place using the locking knob on the flash shoe. Turn the shutter release mode selector lever to the S or C position, and turn ON the flash power switch. External LCD Panel (normal display) 4. When the shutter button is half-pressed, the display appears on the external LCD, and appears on the LCD inside the viewfinder with a + compensation, or appears with a compensation. Viewfinder LCD read-outs.

If the flash-charge mark

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.

C-02 Data imprinting C-03 Aperture setting after lens change C-04 Metered value display time C-05 Range of exposure compensation C-06 External LCD backlight C-07 Select battery C-08 Bracketing order C-09 C-10 C-11 C-12 C-13 C-14 C-15 C-16 Cancel auto bracket Manual mode bracketing Front/Rear dial function exchange in manual mode Rear function dial enabled/disabled Dial function direction Program shift AEL & AFL function button exchange Half-press shutter release function 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

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.

C-27 Flash sync. timing

When a moving subject has been shot using the flash, a flash of light will appear ahead of the subjects movement under the initial setting. This function makes it possible to change this so that the flash of light comes after the moving subject as illustrated. 0: No (front curtain synchronization: initial setting) 1: Yes (rear curtain synchronization)
C-23 Shutter speed in X mode
This function is used to set the shutter speed in X (synchronizing) mode. The initial setting is 1/125 sec. The kind of large flash unit for use in studios has a long firing time and so it may not synchronize at a high shutter speed setting. Take one or more test shots, then set the synchronization speed.

Miscellaneous Operations

Changing the Focusing Screen
1. Remove the lens. 2. Pull the Focusing Screen Release lever A forward, as illustrated, with the tweezers to let the Focusing Screen down.
Since the Focusing Screens' surfaces are soft and easily damaged, handle them carefully. Never touch the surface with bare fingers. Should dust settle on it, merely blow away by using a blower. If the Focusing Screen needs cleaning, send it to the nearest authorized Mamiya service center. Do not attempt to clean the surface of the Focusing Screen, as it is very delicate.
3. Remove the Focusing Screen from the Focusing Screen Frame by grasping the tab on the edge of the screen with tweezers as illustrated.
Do not touch and damage the mirror in any way.
4. When installing the screen, pinch the tab of the screen with tweezers, and put the screen on the screen frame.
5. Push up the screen frame using the tweezers until hearing a clicking sound. The screen is now properly installed.
Never press down on other parts as this will affect the focus function.
Using the M645 Manual Focus Lenses
When using the MAMIYA M645 manual focus lens, mount the focusing screen for manual focus lenses (sold separately). 1. Mount the M645 lens on the camera body, turn the A/M lever on the lens to the "M" position. Set the lens to maximum aperture, compose and focus. You may use the focus mark to adjust focus. 2. Select exposure mode and set the desired aperture on the lens.
For auto exposure, select the Av (aperture priority AE) and choose the spot exposure metering mode S, you can use the lens in conjunction with stop-down metering.