SQ-Ai 6x6 Format Single Lens Reflex Camera Square Format Camera featuring professional specifications Specifications Type 6x6cm format shutter single lens reflex camera , with interchangeable lens , film back , finder and focusing screen systems. Flame size 55.6 x 55.6cm Film 120 roll film ; 220 roll film ; 135 cartridge-loaded film ; and Polaroid Land film. (Exclusive film backs for each film type.) Standard lens ZENZANON P380mm F2.8 lens, interchangeable type; 6 elements in 5 groups ; multi-layer anti -reflection coated ; 50.7°angle of view ; F22 minimum aperture ; 0.8m minimum focusing distance. Lens mount Exclusive four-craw BRONICA SQ bayonet mount. Shutter Electronic control SEIKO#0 between-lens leaf shutter ; shutter speeds 16 to 1/500sec. plus B(Bulb) and T(Time) ; Film winding Film winding crank ; one complete forward revolution or ratcheted winding action Mirror lock-up Mirror look-up possible with switch lever on the side of camera main body for a single or continuous picture talking. Multiple exposure Multiple exposure possible with lever on main camera body. Film back Daylight loading interchangeable type ; exclusive film backs SQ-i 120(6x6) SQ-i 120J(6x4.5) SQ-i 220(6x4.5) SQ-i 220J(6x4.5) 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 Focusing screen Interchangeable ; Microprism / Spilt-image (standard) Flash synchronization X-setting (up to 1/500sec.) ; 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 double as shutter closing signal. Battery Four 1.5-volt alkaline-manganese battery (LR44x4pieces) Dimentions 92(W)x94(H)x80(L)mm (SQ-Ai main body only.) 92(W)x109(H)x179(L)mm (with standard lens, Film back SQ-i 120 and Weist-Level Finder S.) Weight 550 grams(SQ-Ai main body only ; without battery.) 1515 grams(with standards lens , Film Back SQ-i 120 and Weist-Level Finder S ; without battery) ZENZANON PE Lens Series (6 x 6) Lends Lens contsruction Angle of View Aperture (F) Min. Focusing distance(m) Filter size (mm) Size (mm) Weight (g) 35mm equivalent focal length(mm) PS 35mm F3.5FISHEYE 8-11 180° 3.5-22(with half-click stop) 0.28 ø 32.5(Real filter) 91 x ø 98 960 19 PS 40mm F4 8-11 87° 4-22(with half-click stop) 0.4 ø 95 67.5 x ø 98 650 23 PS 50mm F3.5 8-10 76° 3.5-22(with half-click stop) 0.5 ø 77 61.7 x ø 82 590 28 PS 65mm F4 7-9 62.3° 4-22(with half-click stop) 0.6 ø 67 69.6 x ø 82 665 35 PS 80mm F2.8 5-6 50.7° 2.8-22(with half-click stop) 0.8 ø 67 52 x ø 82 490 45 PS 110mm F4.5MACRO[1:1] 8-9 39.8° 4.5-32(with half-click stop) 0.37(Magnification 1:1) ø 72 107 x ø 86 940 60 PS 135mm F4 4-6 32.8° 4-32(with half-click stop) 1.0 ø 67 79 x ø 83 755 76 PS 150mm F4 4-6 29.5° 4-32(with half-click stop) 1.5 ø 67 74 x ø 83 750 85 PS 180mm F4.5 8-9 24.7° 4.5-32(with half-click stop) 1.0 ø 67 96 x ø 83 865 100 PS 200mm F4.5 5-7 22.8° 4.5-32(with half-click stop) 2.5 ø 67 107 x ø 83 870 110 PS 250mm F5.6 5-7 18.2° 5.6-45(with half-click stop) 3.0 ø 67 150.2 x ø 83 1010 135 PS 500mm F8 10-11 9.2° 8-64(with half-click stop) 8.0 ø 122 307.5 x ø 139 3760 270 S 500mm F8 6-7 9° 8-45 8.5 ø 95 255 x ø 102 1890 270 TELE CONVERTER PS 2X 6-7 1/2 of prime lens Exposure factor ; 4X (2F/stops) Same as prime lens - 64.4 x ø 84 600 - TELE CONVERTER PS 1.4X 5-5 1/1.4 of prime lens Exposure factor ; 2X (1F/stops) Same as prime lens - 29 x ø 84 370 -