The document introduces the features and characteristics of the Pentax 645rr camera.
This manual provides detailed instructions for operating the Pentax 645rr, a professional medium format SLR camera. It covers basic setup, autofocus modes, exposure control, and advanced features like multi-exposure and auto bracketing. The camera supports 120, 220, and 70mm film formats with TTL autofocus and six-segment metering. It includes specifications such as shutter speed, ISO range, and lens compatibility.
| Type | TTL autofocus, auto-exposure 6 x 4.5 format SLR camera |
|---|---|
| Format | 56 x 41.5mm |
| Usable Film | 120 roll film (16 exposures) with 120 film holder, 220 roll film (33 exposures) with 220 film holder and 70mm roll film (about 95 exposures) with 70mm film holder |
| Usable Film Speed | ISO 12 - 6400 |
| Shutter | Electronically-controlled vertical-run cloth focal-plane shutter, Speed range: (1) Auto 1/1000-30 sec.(stepless), (2) Manual 1/1000-6 sec.(3) Bulb |
| Lens Mount | Pentax 645 AF mount (645 A-mount with AF coupler, lens information contacts) |
| Autofocus System | TTL phase-matching multi-(3 points) autofocus system switchable to Spot focusing, AF operational brightness range: EV -1 to 18 (at ISO 100), Focus lock available using shutter release button, Focus Mode: CONTINUOUS (predictive AF provided), SINGLE, Manual [ MF ] |
| Viewfinder | Keplerian telescopic viewfinder with Natural-Bright-Matte focusing screen (Interchangeable focusing screens available), Field of view: 92% vertical and 93% horizontal, Magnification:0.76X(with 75mm lens at infinity ), Diopter: -3.5 to +1.5 m" |
| Exposure Meter | TTL dual six-segment metering, Metering range from EV2 to EV21 at ISO100 with 75mm #/2.8 lens, Center-weighted and Spot metering mode can be set |
| Exposure Compensation | +3.3EV in 0.3EV step increments |
| Flash Sync | Via Hot shoe with X-sync. contact with couples with Pentax dedicated auto flashes, X-syne speed at 1/60 sec., Slow shutter speed synchronization possible in Metered Manual Mode, X-sync. socket is provided, ISO range=25-800 |
| Dimensions | 147.0mm(W) x 109.0mm(H) x 117mm(D) {5.8"x4.3"x4.6"} |
| Weight | 1280g (45.2 oz) body only without batteries |
It supports 120 roll film (16 exposures) with 120 film holder, 220 roll film (33 exposures) with 220 film holder and 70mm roll film (about 95 exposures) with 70mm film holder.
The ISO range is 12 to 6400.
It uses a TTL phase-matching multi-(3 points) autofocus system switchable to Spot focusing, with an AF operational brightness range of EV -1 to 18 (at ISO 100).
The magnification is 0.76X with a 75mm lens at infinity.