Zenza bronica film back sq-1 135 instructions. Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Zenza bronica film back sq-1 135 instructionsSpecifications of the Film Back SQ-i 135 Nomenclature....................... 1. Film BackConstruction 2. Film Back Attachment/Removal . . . . . . i 3. FilmLoading..................... 4. FilmSpeedDiaI................... 5. Exposure Compensation Dial 6. Film Type Indicator Frame 7. Film Advance/Shutter Cocking 8. ExposureCounter................. 9.FilmRewinding................... 10.FilmUnloading 11.FocusingScreen..................Type : Interchangeable type film back for 35 mm film use. ASA/ISO film speed dial coupling to meter finder. Models : Film Back SQ-i 135-N (normal) for standard frame size and Film Back SQ-i 135-W (wide) for wide frame size photography. Cameras : For use with Zenza Bronica SQ. SQ-A, SQ-Am and SQ-Ai models. Film : Cartrige-Ioaded 135 film. No. of Frames : 3GEx./ 24Ex./ 2oEx./ 12Ex. 36Ex./ 24Ex./ 2oEx./ 12Ex. (SQ-i 135-N) 23Ex./ 15Ex./ 12Ex./ 7Ex. (SQ-i 135-W) Frame Size : 24 x 36 mm (SQ-i 135-N) 24 X 54 mm (SQ-i 135-W) Winding Action : One full forward revolution of the film winding crank on the main camera body (irrespective of frame size). Ratcheted winding also possible(SQ, SQ-A and SQ-Ai). Motorized auto- matic film winding (SQ-Am and SQ-Ai when Motor Drive SQ-i is attached). Manual film winder available on film back. Rewinding Action : Manual rewinding with rewinding crank on film back. Exposu're Counter : Automatic re-setting additive type. Dimensions : 90 mm wide X 47 mm long x 91 mm high Weight : 500 grams