Lens · prime
Mamiya Apo-Sekor Z 250mm f/4.5
Mamiya
Discontinuedmedium-format
Mamiya Apo-Sekor Z 250mm f/4.5: 7 elements in 5 groups, 1.86m minimum focus, 77mm filter thread, 1340g.
- Focal length
- 250mm
- Max aperture
- f/4.5
- Mount
- Mamiya RZ
- Format
- medium-format
- Elements / groups
- 7 / 5
Known for
- Product
- Fashion
- Critical color work
Considerations
- Electronic Seiko #1 leaf shutter: needs camera battery power
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)5, level 5 of 5
Sharpness (stopped)5, level 5 of 5
Contrast5, level 5 of 5
Flare resistance4, level 4 of 5
CA control5, level 5 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5
Bokeh: Excellent, APO
Rendering: Reference quality
Colour: Neutral APO
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Buying guide
Check the leaf shutter fires at all speeds, the aperture and focusing smoothness, and the condition of the glass.
Specifications
| Mount | Mamiya RZ |
| Focal Length | 250mm |
| Max Aperture | f/4.5 |
| Min Aperture | f/45 |
| Min Focus | 1.86m |
| Filter Size | 77mm |
| Weight | 1340g |
Optical design
| Formula | Telephoto |
| Elements | 7 |
| Groups | 5 |
| Coating | Multi-Coated |
| Special | APO elements |
Pricing
- Typical used price (US market)
- $600 - $1000
- Mint
- ~$1200
Indicative, no dated source.