Camera · Medium format
Pentax 645N / 645NII
1997-2006
Discontinued120IntermediateAdvancedProfessional
AF medium format shooting
- Format
- 120
- Mount
- PENTAX 645
- Metering
- Built-in
- Shutter
- 1/1000 manual; 30s
- Battery
- 6 x AA
- Weight
- 1280g
Battery req.
Max speed
Best for
- AF medium format shooting
- Portrait photographers
Features
- Autofocus (3-point, spot AF option)
- Dual six-segment metering with centre-weighted and spot modes
- Built-in motor drive (about 2 fps)
- Film insert system for 120, 220 and 70mm
- Multiple exposure
- 645NII adds mirror lock-up
Limitations
- AF slower than 35mm systems
- Still uses insert backs
- Heavy
- 6x4.5 smallest MF format
Common issues to check
- AF motor failure
- Film insert mechanism jams
- Battery contact issues
- Rubber grip deterioration
- Mirror damper wear
Buying guide
The 645N (1997) added autofocus to the 645 system; the 645NII (2001) added mirror lock-up. Pentax's manual lists 1280g body only, 6 AA batteries, 1/60 flash sync and a 0.76x finder. Test AF with multiple lenses and check film insert operation.
Pricing
- Typical range
- £350 - £600
- Excellent condition
- ~£750
Indicative, no dated source.
Prices as of 2026-01. UK market, may vary.
Specifications
| Format | 120 |
| Years produced | 1997-2006 |
| Mount | PENTAX 645 |
| Shutter type | Focal Plane |
| Shutter speeds | 6s - 1/1000 manual; 30s - 1/1000 in auto (645NII) |
| Flash sync | 1/60 |
| Metering | Multi Pattern |
| Battery required | Yes (6 x AA) |
| Weight | 1280g |
| Dimensions | 147 x 109 x 117mm |