Mamiya 645 AFD II, Instructions Manual, Page: 33 / 56

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Metered-value difference indicator
Keep pressing the AEL button , and the
difference between the metered exposure
value and the exposure of the new composi-
tion will be displayed on the viewfinder LCD.
This function can be used to see if an object of
very different brightness levels can be properly
photographed.
The AEL button will lock the Auto-exposure value as the photo is being recomposed.
AE Lock Mode
1. Turn the shutter release mode selector lever
to “ S ” or “ C .”
2. Turn the exposure mode setting dial and
select any of “ P ,” “ Av ,” or “ T ”.
3. Focus on the subject for metering exposure,
and press the AEL button on the rear of the
grip. will appear on the viewfinder LCD,
indicating that the exposure value is locked.
4. Slide the camera to recompose the shot,
and take the picuture.
on the viewfinder LCL blinks to indicate
the exposure is locked, when you continue
to take the next picture in the AE lock mode.
When the exposure is compensated with the
rear dial (see pages 63 and 64), the shutter
speed can be set with the front dial only.
If you turn the shutter release mode selector
lever to the “L” (power OFF) position, or after
elapse of one hour, the AE lock mode will au-
tomatically be cancelled.
In the Manual “M” exposure mode, you can-
not use the AE lock function. When the differ-
ence between the metered value and the set
value is displayed, press the AEL button for
approximately one second, and one-push
shift function will be activated and the cam-
era will automatically adjust the shutter speed.
(See page 59)
If the difference between the set value and the metered value exceeds 6EV, the
viewfinder LCD blinks “ – u – ” for underexposure and “ – o – ” for overexposure.
By turning the front or rear dial in the AE lock mode, you can change the aperture
and shutter speed value without changing the exposure value that is set when
entered into AE lock mode.
In the “
P ” mode (Program AE) mode, turning either the front or rear dial shifts the
program to “P
H
” and “P
L
.” When in “ Av ” (Aperture-priority AE) or “ Tv ” (Shutter-
priority AE), turning one of the dials changes both the aperture and shutter speed
values.
Exposure compensation and auto-bracketing function can be used when the
camera is in the AE lock mode in normal operation or with the mirror locked
up.
1. The way to cancel the AE lock can be changed.
Custom settings (C-19 on page 91)
2. Half-pressing of he shutter release button can activate the AE lock
mode.
Custom settings (C-18 on page 91)
3. The assignment of the AEL button and AFL button can be swapped.
Custom settings (C-17 on page 91)