12
Trigger Button (14)
The MD-4's trigger button, because it is an elec-
tromagnetic release, operates in exactly the same
manner as the camera's shutter release button. It
not only trips the shutter but serves as a meter
switch as well. When depressed halfway, it turns
on the meter and activates the LCD exposure in-
formation in the viewfinder. If the button is not
touched again, the meter will turn itself off
automatically after 16 sec. to conserve battery
power.
With the MD-4 attached, it makes no difference
whether the camera's power switch is turned on or
not. In fact, you might find it easier to leave
the switch in the OFF position and control the
camera's meter entirely with the trigger button.
Frame Counter (4)
A subtractive-type frame counter is built into
the MD-4. For normal shooting, set the counter to
the orange dot and forget it. At this setting, the
counter is disengaged and the motor drive stops
automatically when the film tension increases at
the end of the roll.
However, in below-freezing temperatures, film
becomes brittle and easy to break. Therefore, to
prevent the film from being accidentally torn,
set the frame counter to the number of fraEr es on
the roll. When the counter reaches "0," the motor
drive automatically shuts off before the film is
damaged. One LED also lights up as a visual indi-
cation. To set the counter, turn the counter set-
ting dial to the right until the desired number is
aligned with the white index (3). 36, 24, 20, and
12 are in red corresponding to the number of
CONTROLS IN DETAIL
continued
