Camera · Medium format
Pentax 645
1984-1997
Discontinued120IntermediateAdvanced
Entry to medium format
- Format
- 120
- Mount
- PENTAX 645
- Metering
- Built-in
- Shutter
- 1/1000
- Battery
- 6 x AA
- Weight
- 1320g
Battery req.
Max speed
Best for
- Entry to medium format
- Portrait work
- Those wanting SLR handling
Features
- 6x4.5cm negative size
- Built-in motor drive (about 1.5 fps)
- Insert film back system
- Interchangeable focusing screens
- Program, aperture-priority, shutter-priority and metered manual modes
- 15 exposures on 120 film
Limitations
- Film holders cannot be swapped mid-roll
- 6x4.5 is the smallest common 120 format
Common issues to check
- Film insert mechanism jams
- Mirror damper deterioration
- Battery contact corrosion
- Meter accuracy drift
Buying guide
The 645 (1984) is a 6x4.5 SLR with a built-in motor drive (about 1.5 fps), program, aperture-priority, shutter-priority and metered manual modes, 15s-1/1000 and 1/60 flash sync. It uses insert film holders; check film advance works smoothly with them and test all shutter speeds.
Pricing
- Typical range
- £150 - £350
- Excellent condition
- ~£450
Indicative, no dated source.
Prices as of 2026-01. UK market, may vary.
Specifications
| Format | 120 |
| Years produced | 1984-1997 |
| Mount | PENTAX 645 |
| Shutter type | Focal Plane |
| Shutter speeds | 15s - 1/1000 |
| Flash sync | 1/60 |
| Metering | Center Weighted |
| Battery required | Yes (6 x AA) |
| Weight | 1320g |
| Dimensions | 147 x 109 x 117mm (with grip and film holder) |