Mamiya 645DF, Инструкция по эксплуатации

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C1, C2 or C3 Modes
Mode dial options “ C1 ”, “ C2 ” and “ C3 ” can be used to memorize preferred settings.
These settings can be changed instantly to suit the photographer's needs.
Programmable settings are exposure mode, “
P ” (program AE), “ Av ” (aperture priority
AE), “ Tv ” (shutter speed priority AE), “ X ” (synchro mode), “ M ” (manual mode), focus
area and spot metering.
Programming C1, C2 or C3
1. Go to the setting you wish to assign to “ C1 ”, “ C2 ” or “ C3 ”.
2. To record this setting, hold the set button down for one second until the details are
displayed, then press the SET button while turning the mode dial to “ C1 ”, “ C2 ” or “ C3 ”.
When you release the SET button, the chosen setting will be programmed to your
selection of “
C1 ”, “ C2 ” or “ C3 ”.
P
Av
Tv
M
X
CF
C1
C2
C3
Av
M
Tv
X
CF
P
C1
C2
C2
1
2
3
4
* The illustration shows the
exposure mode “
Av ” (aperture
priority AE) being recorded to C2 .
Even when the power is switched off, the mode recorded will still be saved to C
mode.
“C1”, “C2” or “C3” modes can be changed while photographing. However after
taking a photo in a mode other than the modes selected in “C1”, “C2” or “C3”,
when you turn the dial back to a C mode setting the change will not be saved.
Exposure Modes (continued)
P Av
Tv
M
X
CF
C1
C2
C3
A
B 2. Press the SET button or exposure
metering mode button to enter the setting.
Exposure Metering Modes
How to select an exposure mode
1. Exposure mode mark is displayed when the
exposure mode button is pressed. Since
three different exposure modes are displayed
sequentially when either the front or rear dial is
turned, select an appropriate exposure mode.
There are three exposure metering mode to select a proper exposure modes
appropriate to the lighting condition of subject.
Exposure Metering Modes
Exposure metering is performed after automatically
selecting average/spot exposure metering.
• Depending on the subject conditions, center-
weighted 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.
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.
Average/spot auto
exposure metering
Center-weighted
average/spot
exposure metering
Center spot
exposure
metering