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Specifications of the ZENZA BRONICA SQ-Ai
Type 6 x 6 cm format lens shutter single lens reflex
camera, with interchangeable lens, film back,
finder and focusing screen systems.
Frame Size 55.6mm x 55.6mm
Film 120/220/135 roll film and Polaroid Land pack
film, with exclusive film backs.
Lens Interchangeable type. Standard lens
Zenzanon-PS 80mm F2.8; 6 elements in 5
groups; multi-layer anti-reflection coated;
50.7° angle of view; F22 minimum aperture;
intermediate aperture settings; helical focusing from infinity to 80cm.
Filter Sizes 67mm diameter on Zenzanon-S/PS 40mm
and Zenzanon-S 500mm lenses; 77mm diameter on Zenzanon-PS 50mm lens; and 122mm
diameter on Zenzanon-PS 500mm lens.
Lens Mount Exclusive four-claw Bronica SQ bayonet
mount.
Focusing Helical focusing system built into each lens;
angle of focusing 171° for standard lens.
Shutter Electronic control SEIKO #0 between-lens leaf
shutter; shutter speeds 16 sec. to 1/500 sec.; T
(time exposure); B (bulb exposure); with shutter release lock.
One step settings with Waist-Level Finder S
and Prism Finder S.
Lens Diaphragm Fully automatic instant reopening lens
diaphragm action; equal-distant aperture
scale graduations; half-stops possible; depth
of field previewing.
Film Winding Film winding crank; one complete forward
revolution or ratcheted winding action.
Multiple Exposure Multiple exposure possible with lever on
camera main body; multiple exposure warning indication in finder.
Mirror Lock-Up Mirror lock-up possible with switch lever on
the camera main body; single or continuous
mirror lock-up shooting possible.