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3. Shooting 3-4 Exposures
Manual exposure (2EV under)
Correct exposure
3. Manual Exposure Control
This exposure control mode is particularly important to those serious pho-
tographers who intentionally determine specific shutter speeds and lens
apertures in order to produce creative images. The Bronica RF 645 with its
extremely precise electronic shutter speed and lens aperture control system
makes an ideal manual exposure control camera.
To set the manual exposure control mode (from "P" to "A" modes), rotate
the shutter speed dial while pressing the shutter speed dual lock release,
and align the desired setting from the numerals 1 to 500 (1 to 1/500 sec.)
with the arrow mark on the top of the camera body. Lightly press the shut-
ter release button and an "M" mark with the set shutter speed and a numer-
al that indicates the deviation of the manually set exposure will appear on
the LCD panel in the viewfinder. Note:The exposure deviation indication is
a numerical expression of the difference between the manually set expo-
sure level determined by the combination of the set shutter speed and the
f-number and the exposure level determined by the camera's metering and
correct exposure calculation system. The exposure deviation is indicated in
½ stop increments up to ±3 stops. When "0" is displayed there is no differ-
ence between the manually set exposure and the metered level. When "-1"
is indicated, the manually set exposure can be adjusted to the correct or
metered exposure level by setting the shutter speed one stop slower or
opening of the lens aperture by one stop. A half stop deviation indicated
by "-2.5" or "1.5" may be corrected by the intermediate lens aperture set-
ting.
When there is an over ±3 stop deviation, either the 3 or -3 numeral will flash
to alert the user. Naturally, excellent shots can be taken in spite of an indi-
cated exposure deviation.
Many serious photographers take high key, low key and other type of inten-
tionally exposure-deviated images for their artistic expressions.
3-4-4 Exposure Compensation
The purpose of the exposure compensation dial is to adjust the auto-
matically determined exposure level by manually setting the value in
the Aperture-priority AE mode or the Program AE mode. Turn the
exposure compensation dial on the camera rear cover to any desired
amount within the ±2 stop compensation range, graduated in ½ stop
increments. All exposures will be adjusted by that amount until the
exposure compensation dial is turned back to "0" point. There is a
strong click stop at "0" position and light click stops are present at all
other graduated positions.