Zenza bronica etr si film backs etrs 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 etr si film backs etrs 135 instructionsContents Specifications of the Film Back ETRS 135 Nomenclature 1. Film Back Construction 2. Film Back Attachment/Removal 3. FilmLoading..............o’. 4. Film Type Indicator Frame 5. Film Advance/Shutter Cocking . . f 6. ExposureCounter........... 7. FiImRewinding............. 8. FiImUnloading............... 9. FocusingScreen...............Type Models Cameras Film No. of Frames Negative Size Winding Action