SQ-Ai: Based on the earlier SQ-A Series, original Bronica mechatronic technologies developed during a history of manufacturing medium format cameras has resulted in a state of the art union of mechanisms and electronics. The development of this 'system' camera copes with the tremendous diversities possible in image expression. The resulting SQ-Ai is a medium format single lens reflex camera incorporating original Bronica 'system' technology which answers the high image technique
capabilities expected by the professional photographer. The 'system' camera has always been a Bronica philosophy, ever since the founding of the company. Through years of developing medium format single lens reflex cameras, based on the 'system' concept, the SQ-Ai is now the result.

• Specifications Type 6x6cm format lens shutter single lens reflex camera, w/interchangeable lens, film back, finder and focusing screen systems. Frame Size 55.6x55.6mm Film 120 roll film (12 exposures); 220 roll film (24 exposures); 135 cartridge-loaded film; and Polaroid Land film. (Exclusive film backs for each film type.) Standard Lens Zenzanon-PS 80mm F/2.8 lens; interchangeable type; 6 elements in 5 groups; multi-layer anti-reflection coated; 50.7? angle of view; F22 minimum aperture; and helical focusing from infinity to 80cm. Filter Size ?67mm diameter for PS 65mm to 250mm lenses; ?77mm diameter on PS 50mm lens; ?95mm diameter on PS 40mm and S 500mm lenses; ?122mm diameter on PS 500mm lens; ?32.5mm diameter on Fisheye PS 35mm lens. Lens Mount Exclusive four claw Bronica SQ bayonet mount. Focusing Helical focusing system built into each lens. Shutter Electronic control SEIKO #0 between-lens leaf shutter; shutter speeds 16 to 1/500 sec. plus B (bulbs) and T (time); intermediate settings not possible. Film Winding Film winding crank; one complete forward revolution or ratcheted winding action. Mirror Lock Up Mirror lock-up possible with switch lever on the side of camera main body for a single or continuous picture taking. Multiple Exposure Multiple exposure possible with switch lever on the side of camera main body. Film Back Daylight loading interchangeable type; exclusive film backs SQ-i 120 (12 exp.), SQ-i 120J (15 exp.) SQ-i 220 (24 exp.), SQ-i 220J (30 exp.), SQ-i 135N, SQ-i 135W and Polaroid Film Back S; with ASA/ISO film speed dial on Film Back SQ-i, SQ-iJ, SQ-i 135 and ASA/ISO film speed switch on Polaroid Film Back S coupling to the finders with built-in exposure meter, when attached. Finder System Interchangeable finder system; 94% of actual field of view (remains unchanged with different finders); choice of six optional finders, or Waist-Level Finder S, AE Prism Finder SQ-i, ME Prism Finder S, MF Finder S and Prism Finder S and Prism Finder 45D S. Focusing Screen Interchangeable type; standard screen has Microprism/Split-Image. Flash Synchronization X-setting (up to 1/500 sec.); auto-flash control based on direct light measurements at the film plane are possible with optional SCA System Adapter. Battery Checking Red-colored LED lights up within screen area when battery check button is depressed, if there is sufficient power; also doubles as shutter closing signal. Battery Four 1.5-volt alkaline-manganese batteries; also powers AE Prism Finder SQ-i, MF Finder S and ME Prism Finder S, when attached. (LR44x4 pieces). Dimensions 92mm(W) x 109mm(H) x 179mm(L) (SQ-Ai main body with standard lens, Film Back SQ-i 120 and Waist-Level Finder S). Weight 1515 grams (SQ-Ai main body with standard lens, Film Back SQ-i 120 and Waist-Level Finder S).