14
C. The shutter speed dial is set to A, for aperture-priority AE photog-
raphy when a finder with a built-in exposure meter is attached. To set
A, press the shutter speed dial lock button and rotate the shutter
speed dial at the same time. To change from A to another setting, for
manual photography, press the lock button and rotate the shutter
speed dial to the required setting. However, the shutter speed dial
cannot be moved directly from A to B, in this case, or from B to A.
* The shutter speed, when the shutter speed dial is set to A, is 16 sec-
onds, when a finder with a built-in meter is not attached.
13. Setting the Shutter Speed Dial (con’t)
14. Shutter Release Button
An electro-magnetic shutter release button is incorporated in the
Zenza Bronica GS-1. Stroking the release button halfway illuminates
the shutter speed, as digits and dots, etc., in the display panel in the
top center of the finder, outside the screen area.
The display will go out when the release button is stroked all the way
and a shutter release warning LED will light up momentarily, when
the exposure is completed and the shutter blades are closed, which
should be checked when using a slow shutter speed.
In the following cases, the shutter will not be released and the shutter
release warning LED will light up, except in the first instance: -
1. Main switch is OFF.
2. Dark slide is inserted.
3. Film is not advanced. (Same when exposure counter is
between "S" and "1".)
4. Shutter is not cocked.
5. Lens is not attached properly. (Same with automatic exten
sion tubes)
6. Lens release button is depressed.
7. All frames (i.e., 10 frames for 120 roll film and 20 for 220 roll
film) have been exposed.
* There will be under-exposure if the film-winding crank is accidental-
ly rotated before conclusion of the exposure, on a slow shutter speed
setting. Furthermore, the shutter will not be released on the follow-
ing shot until the remaining time for the previous exposure has
elapsed.
