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

Focus marks displayed when subject is in focus Exposure metering mode display

Aperture

Shutter speed
Spot Exposure Metering Mode..45 Average / Spot Auto Switching Exposure Metering Mode. 45
Exposure Compensation...46 Single-Frame Mode / Continuous Mode..47 Additional Shooting Modes...48~ 53 Auto Bracketing Mode...49~ 50 Multiple Exposure Mode..51~ 52 Self Timer Mode...53 Applied Photography...54~ 69 Extended Exposure Modes..55~ 56 AE Lock Mode....57~ 58 Taking Photos with the Mirror Up..59~ 60 Depth of field...61 Infrared Photography..62 Flash Photography...63~ 65 Metz Flash SCA3951 System Functions..64 Flash Photography with Flashes other than Metz Flashes.65 Depth of Field Preview /Eyepiece Shutter..66 Changing The Focusing Screen..67 Using the M645 Manual Focus Lenses...68 External Power Supply...69 Date, Electronic Functions, and Miscellaneous.70~ 86 Electronic Dial Operations...71 Front / Rear Dial Lock Mechanisms...72 Superimposing Data...73~76 Setting the Date and Time...73 Setting the Index Number..74 Selecting the Data to be Superimposed...75 Data superimpose modes..75 Checking the data to be superimposed..76 Changing the Viewfinder Display in the Manual Mode "M"..77 Error Messages....78 If the shutter cannot be released...79 Strap / Using a Tripod / Auxiliary Release Contact..80 Specifications of 645AF...81~82 Common Sense Camera Care and Practice..83~85 The Importance of Proper Maintenance...84 Batteries Care...84 After-Sale Servicing...85 Liquid Crystal Display...86

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.

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.

Holding the Camera

Grasp the camera firmly when taking photos. If the camera moves during exposure, the picture will be out of focus. *Grasp the grip firmly, tuck in both elbows and support the bottom of the camera with your left hand. *At slow shutter speeds, or when using the self timer, it is best to use a tripod and cable release or electromagnetic cable release (Optional accessories).
Taking Photos in the Full Automatic Mode
1. Set the shutter release mode selector lever to "S" (single-frame advance mode).
There are two shutter release modes: "S" (singleframe advance mode) and "C" (continuous advance mode). (See page 47.) When set to "L", the power is turned off.
3. Set the exposure mode selector dial to "P" (program auto exposure).
There are four exposure modes: "P" (program AE), "Av" (aperture priority AE), "Tv" (shutter priority AE) and "M" (manual mode).
2. Set the focus mode selector lever to "S" (single focus mode). (This control is located at the lower left front of the camera.)
There are three focus modes: "S" (single focus mode), "C" (continuous focus mode) and "M" (manual focus mode).
4. Set the exposure metering mode selector lever to "A-S" (average/spot auto switching).

There are three exposure metering modes: "A" in which the average light of the entire picture is measured with emphasis on the center of the picture, "S" in which the light in a spot at the center of the picture 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 and sets the distribution ratio of the exposure metering modes within an intermediate range. (See page 45.)

5. Focus.

1. Aim the camera so that the subject is within the focus frame
6. Unloading the exposed film.
When the fixed number of exposures have been taken, the camera automatically takes up the film till the end and stops. The LCD panel on the magazine should display End now.

1. Open the back cover.

While holding down the magazine's back cover lock release button A push the back cover release button B to open the back cover.
2. Remove the roll-film insert.
Squeeze the release latches C of the roll-film insert in the film chamber with your fingers and take the roll-film insert out. 2. Half-press the shutter release button. The focus is adjusted automatically.

3. Remove the film.

Flip the roll-film clip's spool clip "SPL" away from the spool, and take out the film roll.
4. Fasten the film with a sticker.
After unloading the film roll, attach the provided sticker onto it to prevent unrolling.
*Move the empty spool from the top (FILM) to the lower take-up compartment (SPL), ready for loading the next film roll.
When the focus mark G lights.The picture is focused.
3. When G lights, press the shutter release button to make exposure(s). Defocusing 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.
Precautions for Film Unloading Do not unload an exposed film in direct sunlight. The exposed film should promptly be put in a light tight bag or box and sent to
the processing lab as soon as possible. Never try to remove the magazine from the camera body in the middle of film winding. Otherwise malfunction will result.
Removing a partially exposed film roll

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.

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.

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. Fix the camera to a tripod. 2. Press the mode setting button A three times to set the self timer mode.

3. The number of seconds before the shutter is released can be changed by turning the front or rear dial. The number of seconds can be set between 3 and 60, in steps of 1 second from 3 to 10 seconds, in steps of 10 seconds from 10 to 60. The setting is registered after 5 seconds or when the shutter release button is pressed. 4. Looking through the viewfinder, determine the composition, check that the focus is set properly, then press the shutter release button. The shutter is released after the set number of seconds. * To cancel the self timer mode after pressing the shutter release button, either press the mode setting button A or turn the exposure mode setting dial. Changing the exposure mode does not change the set self timer operating time. *If there is a bright light source behind the camera or if the shutter release button is pressed without looking through the viewfinder, light enters the viewfinder's eyepiece, affecting exposure metering. Turn the eyepiece shutter open/close dial to close the eyepiece shutter. *When the shutter release mode is set to "C" (continuous advance mode), the self timer mode can be used to take photos at intervals of 3 to 60 seconds while the shutter release button is pressed. *To cancel the self timer mode, press the mode setting button A once. The self timer 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.

Extended Exposure Modes

(Bulb and Time Modes)
*To prevent the camera from moving, use both an electromagnetic cable release (sold separately) and a tripod. *When the BL (Backlight) button A is pressed, the main LCD panel and the magazine LCD panel light for about 10 seconds. This makes the liquid crystal display panels easier to view in dark places, for example when photographing night views. *In the "X" exposure mode the lock function is activated. To set a different mode, press the exposure mode dial lock release button B while turning the exposure mode setting dial.
To expose the film for extended times (over 30 seconds), set the shutter speed to bulb or set the exposure mode setting dial to "T" (Time Mode).

Bulb Mode

The bulb mode uses electronic control, so the batteries are in constant use during the entire exposure. 1. Turn the exposure mode setting dial and set it to M" (manual mode). 2. Turn the front dial counterclockwise 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.

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.

3. Turn the front or rear dial to select "Fd".
This is displayed when the batteries are discharged and the camera cannot operate. Please replace batteries with a fresh set. 4. Press the F1 Key again to display "OF" or "On" (flashing). Turn the front or rear dial to select "OF'.
These are displayed when a problem is detected during shooting. If the error display is not canceled when the shutter release button is pressed again, insert the Dark slide, half-press the shutter release button while pressing the roll film holder's manual film advance button to wind up the film, then contact your nearest Mamiya agent or service center.
Returning to the normal display
*Repeat steps 1 to 4 about, turn the front or rear dial to select "On", then press the SET Button for 2 seconds.
If the shutter cannot be released
GThe shutter cannot be released when the batteries are discharged or no batteries
are loaded. GThe shutter cannot be released while the film is being advanced. GThe shutter cannot be released while the flash is charging (while the flash mark is flashing) when the shutter release mode is set to "C" (continuous shooting) with a Metz flash mounted with the SCA 3951 adapter. The shutter can be released once flash charging is completed. GThe shutter cannot be released when the magazine is not mounted. GThe shutter cannot be released while the ISO sensitivity is being set after mounting the magazine. GThe shutter cannot be released when the magazine is mounted and the dark slide is inserted. GThe shutter cannot be released when the magazine is mounted and the rear lid is closed with the film wound up. GWhen the mode setting button is pressed while the self timer is operating, the self timer is canceled and the shutter will not be released. GWhen the exposure mode setting dial is turned while the self timer is operating, the self timer is canceled and the shutter will not be released. GWhen the shutter release mode selector lever is operated while the self timer is operating, the self timer is canceled and the shutter will not be released. GWhen the focus mode selector lever is operated while the self timer is operating, the self timer is canceled and the shutter will not be released. GWhen the exposure mode selector lever is operated while the self timer is operating, the self timer is canceled and the shutter will not be released. GThe shutter cannot be released when one of the error messages is displayed. GWhen the shutter release mode selector lever is set to "L" during long exposures of over 1 second, the shutter closes and the long exposure mode is canceled.

Strap/Using a Tripod/Auxiliary Release Contact
Put the neck strap through the camera's strap mount as shown on the diagram and tighten it. For safety, check that the strap is securely fastened to the strap mount.

Using a Tripod

When using a tripod with 3/8 inch screw thread (instead of 1/4 inch screw thread) remove the small screw A from the tripod screw hole on the bottom of the body using a Phillips screwdriver, then use a coin to remove the tripod screw adapter bushing B.
Auxiliary Release Contact
This is the Port for connecting a Mamiya electromagnetic cable release (sold separately) when taking photos with the mirror up, with long exposures or with slow shutter speeds. #804821.. 1m (3') #804822..5m (15')

Specifications of 645AF

: 6x4.5cm format, electronically controlled focal-plane shutter, TTL multiple mode AE, AF single lens reflex Actual Image Size : 56x41.5 mm Film Type : 120 roll film (16 exposures); 220 roll film (32 exposures); Polaroid Land Pack Film (requires special HP402 magazine) Lens Mount : Mamiya 645 AF Mount, compatible with M645 Mount (manual focus confirmation, focus aid, stopped-down exposure metering) Viewfinder : Fixed prism viewfinder magnification x0.71; built-in diopter adjustment (-2.5 to +0.5, separate diopter correction lenses provide adjustment ranges of -5 to -2 diopter and 0 to +3 diopter); built-in eye-piece shutter Focusing Screen : Interchangeable between Matte (standard) and Checker and Microprism Type C for Non-AF M645 lenses. Field of View : 94%* of actual image Viewfinder Information : Focus mark, out-of-focus direction mark, aperture value, shutter speed, metering mode (A, S, A/S), exposure compensation value (difference between set value and actual value) and flash ready / OK lamp with TTL Metz connection. AF sub-beam : activates automatically under low light, low contrast. Range: 9m, Automatic switching to flash unit's built-in subbeam when Metz flash unit is attached. AF Lock : Half-press on shutter release in S Mode Exposure Control Modes: Aperture-priority AE, shutter-priority AE, programmed AE (PH, PL setting possible) Metering method : Center-weighted average (AV), spot (S) and variable ratio (1.5-step A-S auto change by program shift setting), manual Setting Steps : Shutter speed and aperture both can be set in half-stop increments; electronic dial lock Light Metering : TTL metering; center-weighted average (AV), spot (SP), and auto A-S variable ratio Metering Range : EV 2 to EV 19 (with ISfilm, f/2.8 lens) Exposure compensation : 3 EV (1/3 step) Film speed : ISO 25 to 6400 AE lock : With AEL button; released by pressing twice or shutter operation; light metering value differentiation in viewfinder exposure compensation display when ELS button is held down; 6EV (1/3 step)

Mamiya 645AF/AFD Upgrade Feature Comparison Chart

Upgraded 645AF

Feature
Communication with digital backs

Mamiya 645 AF

not available

Same as AF

Same as AFD X

Mamiya 645 AFD

Mamiya Serial Communication for External (MSCE) TTL Flash output may be adjusted=/- 3EV in 1/3 steps (electronically on the camera body) indecently of the ambient exposure. Display in viewfinder and on main LCD as "of" for over, "up" for underexposed flash P mode: shutter speeds are limited to 1/125 ~ 1/60 Av mode: shutter speeds are limited to 1/125 ~ 30 sec Shutter speeds higher than 1/125 are automatically set to 1/125 sec. Selectable range for Tv and M modes : 1/125 ~ 30 sec Selectable: 1) Flash compensation only or 2) Flash and Ambient compensation independently Ambient exposure and flash exposure value may be selected for independent or simultaneous control May be switched off Exposure dial locks in "P, Av, Tv, M, and X" position Locks in all metering pattern modes
Flash exposure compensation
TTL flash synchronization in P and Av modes TTL flash synchronization in Tv and M modes Flash selection mode
Shutter speeds go as low as necessary (as determined by the ambient metering system) Shutter speeds higher than proper sync speed could be set even when a dedicated flash is mounted in Tv and M modes Flash/Ambient exposure compensation changes are simultaneous Ambient exposure plus flash exposure value controlled simultaneously Always on in single focus mode Exposure dial locks on "X" No lock on metering pattern dial Center weighted X
Ambient Exposure Control AF Assist Light AE Dial Light Metering Pattern Lock Average Metering System
5 segment evaluative with 4 point averaging. Brightest measured outer points is eliminated from calculation.

Program Mode

Metering range warning: blinking "P" when exposure is out of metering range; also blinks when Program shift is activated (PH and PL)
Blinking "P" when exposure is out of metering range: does not blink when Program shift is activated (PH or PL)
Lens/Aperture Exposure Quick Shift in Manual Mode Mode icons
Aperture defaults to widest lens opening when changing lenses
Set aperture is retained when changing lenses Pressing the AEL button shifts the exposure from a manual value to the camera-metered value in shutter speeds Mode button has 3 printed icons of the functions available for quick reminder and access. 3 consecutive exposures - with viewfinder and LCD panel display standard (N1), Under (U1) and Over (01). Auto bracketing is cancelled on-demand by pressing MODE button In single shot mode, the metered value is not retained during the exposures

Not available

No symbols near button 3 consecutive exposures - with LCD panel display (standard (N1), Under (U1) and Over (01) then Auto bracketing is automatically cancelled In Single shot mode, the metered value is retained for 3 consecutive exposures In Continuous mode, the metered value is retained for 3 consecutive exposures, then Auto bracketing is automatically cancelled Not available No film imprinting 5 Sec Modes are activated instantly after MODE button is pressed Auto-Bracketing , Multi Exposure, Self Timer, and AEL must be reset after each exposure Cancelled after one exposure LCD Panel displays 1 to 5 Does not cancel when film magazine is removed Sleep mode starts 5 sec after AEL is activated No warning message Cancelled after one exposure Viewfinder display is not illuminated when mirror is in up position Viewfinder display is not illuminated when mirror is in up position Exposure correction is not possible and viewfinder display is not illuminated when mirror is in up position Sleep mode starts 5 sec after AEL is activated Aperture cannot be changed if Depth-of-preview button is pressed Backlight symbols is "BL" No "0" (zero) mark on diopter With an f/4.5 lens the camera displays the next aperture value as f/4.8
Auto Bracketing: display in viewfinder

Bracketing:

Single advance
Bracketing: Continuous advance
In Continuous mode, the metered value is retained for 3 consecutive exposures, Auto bracketing is not automatically cancelled YES- Bracketing is accomplished using Aperture settings, Shutter Speeds are variable Bracketed values are imprinted on the outer edge of the film 15 Sec MODE button must be pressed and held for one second to prevent accidental activation of unwanted modes Selected modes remain activated until intentionally cancelled Cancelled by pressing the mode button or by turning the power off LCD Panels 2 to 6 ( for better comprehension ) Cancelled when film magazine is removed Sleep mode starts one hour after EL is activated Dark slide warning. "No fb" is displayed" if photo is attempted with dark slide in Cancelled only by pressing the AEL button twice [] symbol is displayed when AEL is activated. After the exposure [] symbols blink

Bracketing in manual mode Bracketing imprinting Auto power off (Sleep Mode ) Mode Selection

X X X X

Mode cancellation Self timer Multi-Exposure mode time exposure mode AEL-sleep mode Dark slide warning AEL Lock (Auto Exposure Lock) AEL mode in viewfinder

X X X X X X X X

Mirror up Exposure correction and display with Mirror Up Mirror up sleep mode Depth of field Backlighting Icon Diopter Incremental aperture display
Viewfinder displays is illuminated when mirror is in up position Exposure correction is possible and viewfinder display is illuminated when mirror is in up position Sleep mode starts one hour after AEL is activated Aperture values may be changed while Depth-of field preview button is pressed Backlight indicator is an icon of a light bulb "-" symbol indicates "0" (zero) setting

X X X X X X

With an f/4.5 lens the camera displays the next aperture value as f/5.6