Type
6 x 7cm format lens, shutter single lens reflex
camera with interchangeable lens, film back,
finder and focusing screen systems.
Frame Size
55.6 x 69.0mm (4:5 ratio matching the size of
the photographic paper.)
Film
120 roll film; 220 roll film; 135 roll film in film
cartridges; and Polaroid Land Pack films (with
exclusive film backs required for each film
type.)
Standard Lens
Zenzanon-PG 100mm F3.5; interchangeable
type; six elements in four groups; multi-layer
anti-reflection coated; 48 degree angle of
view; F22 minimum aperture; and minimum
0.75m focusing distance.
Filter Size
72mm diameter on 100mm F3.5 standard
lens.
Lens Mount
Bronica GS mount (exclusive four-claw bayo-
net.)
Focusing Adjustment
Helical focusing system built into each lens.
Lens Diaphragm
Fully automatic instant reopening lens
diaphragm; ½ stop increments; equal-distant
aperture scale graduations.
Shutter
Electronic control SEIKO #0 between-lens leaf
shutter; shutter speeds from 16 sec. to 1/500
sec., without intermediate settings, plus T
(time exposure), B (bulb) and A (automatic
exposure.)
Shutter Release
Electro-magnetic shutter release system; also
has electro-magnetic cable release system.
Film Winding
Film winding crank, with one full forward rev-
olution or ratcheted winding action.
Multiple Exposure
Multiple exposures possible with multiple
exposure lever on camera body.
Mirror Lock-up
Continuous mirror lock-up possible with mir-
ror lock-up lever on camera body.
3
Specifications of the ZENZA BRONICA GS-1
