Since 1975, when Mamiya introduced their first 6x4.5 film format camera, it set the standard for quality, value, versatility, efficiency and simplicity. The Mamiya 645 Pro camera is a lightweight, user-friendly, full-system medium format SLR offering a complete line of components and accessories including twenty-one lenses (plus a 2x teleconverter), four interchangeable backs (including a Polaroid Pack Film Holder), four viewfinders (both metered and non-metered), diopters, two types of power drive grips, five interchangeable focusing screens, a bellows system for close-up photography and a wireless remote control system. This system is perfect for advanced amateurs and demanding professional photographers.
| Camera Type | Manual focus, electronically controlled horizontal focal-plane shutter, Single-Lens-Reflex camera |
| Format | 6 x 4.5cm; Image size is 56 x 41.5mm (2 1/4 x 1 5/8") |
| Film Back/Loading | Optional interchangeable, daylight loading; 120 and 220 Roll Film Holders available as well as separate 120 and 220 Roll Film Inserts; All backs contain dark slide, dark slide pocket, film speed dial (ISO 25-6400), and memo clip |
| Film Type | 120 roll film (15 exposure), 220 roll film (30 exposure) and 135mm roll film; 3 1/4 x 4 1/4" Polaroid Pack Film available (i.e., Polaroid 669, Pro 100, and Fuji 100FP) |
| Lens Mount | Mamiya M645 bayonet mount. NOTE: Depth-of-field preview for the complete 645 manual focus system is achieved through a switch on each lens |
| Shutter | Electronically controlled horizontal focal-plane shutter; Shutter speeds 4sec. to 1/1000 second plus "B" (Bulb), and "T" (Time) exposure. (8-1/1000 second with optional Pro AE Prism Finder in 1/6 EV steps) |
| Shutter Release | Accepts two electromagnetic shutter release cables: 1m cable (#211433), and 4m cable (#211434); Will also accept standard cable release using TL Cable Release Adapter (#211114); In addition, accepts wireless Infrared Multi-Channel Remote Control Set RS401 (#212607) |
| Self Timer | 10 seconds; Counts 8 seconds and blinks 2 seconds before exposure; cancellable |
| Flash Synchronization | Sync speed is 1/60 sec; Body contains "PC" terminal (for external electronic flash connection ONLY) plus hot shoe |
| Mirror Lock-Up | Yes, with lever on left side of body |
| Exposure Metering | With AE Prism Finder: Aperture Priority; MODES: Average (Center-Weighted), Spot (reads only center of frame) and Auto-Shift Program (switches between Average and Spot according to relative contrast in brightness between the center and surrounding area of the frame); AE Prism Finder allows manual exposure compensation (in 1/3 EV steps); Center-Weighted, Aperture Priority possible with AE Reflex Finder; Blinking LEDs signal correct exposure in both viewfinders |
| Exposure Bracketing | None |
| Exposure Compensation | Optional AE Prism Finder FE401 allows manual exposure compensation (in 1/3 EV steps) |
| Depth-of-Field Preview | Depth-of-field preview for the 645 Pro system is achieved through a switch on each lens |
| Viewfinder | 94% of actual field-of-view; Four optional interchangeable viewfinders available: Waist Level (#211310), AE (Auto Exposure) Prism Finder (#211315), Pro Prism Finder (Non-metering, #211316), SV AE Reflex Finder (#211102); Interchangeable focusing screens: Standard screen is Type "E" Rangefinder Microprism (#211344); Five additional screens available: Type "A" Matte (#211340); Type "A4" Checker (#211341); Type "B" Rangefinder Spot (#211342); Type "C" Microprism (#211343); Diopters available from -3 to +3; Built-in rotating diopter on the FK402 AE Finder (-5 to +5) |
| Viewfinder Info | With AE Prism Finder: Blinking LED indicators for metering method (Aperture or Shutter Priority), over/under and correct exposure, "B" exposure, low battery power, dark slide inserted, and completion of rewinding; With AE Finder FK402: Blinking Led indicators for "AE" (Aperture Priority) mode, over/under and correct exposure, out-of-range metering |
| Film Transport | Via SV Power Drive Grip (#211103) which allows single shot advance |
| Multiple Exposure | Yes, using switch on right side of body; Possible to expose same frame any number of times |
| Focusing System | Helicoid (manual rotating mount) |
| Power Source | Uses PX28 silver oxide, PX28L lithium, 4LR44 alkaline; External Battery Case available which provides battery protection when shooting in extreme cold weather. Battery Check: "B.C." button located on front of camera body; Supply indicated as one of three levels by battery check LED |
| Custom Functions | None |
| Data Imprinting | None |
| Tripod Mount | 3/8" with 1/4" bushing |
| Dimensions | 6.2 x 5 x6.2 LHW |
| Weight | 3 lbs 12 oz |