Lens · prime
Mamiya Sekor Z 90mm f/3.5 W
Mamiya
Discontinuedmedium-format
Mamiya Sekor Z 90mm f/3.5 W: 6 elements in 6 groups, 0.43m minimum focus, 77mm filter thread, 690g.
- Focal length
- 90mm
- Max aperture
- f/3.5
- Mount
- Mamiya RZ
- Format
- medium-format
- Elements / groups
- 6 / 6
Known for
- General purpose
- Portraits
- Documentary
- Studio
Considerations
- Electronic Seiko #1 leaf shutter: needs camera battery power
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)4, level 4 of 5
Sharpness (stopped)5, level 5 of 5
Contrast5, level 5 of 5
Flare resistance4, level 4 of 5
CA control4, level 4 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5
Bokeh: Smooth
Rendering: Classic medium format
Colour: Warm Mamiya
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 | 90mm |
| Max Aperture | f/3.5 |
| Min Aperture | f/32 |
| Min Focus | 0.43m |
| Filter Size | 77mm |
| Weight | 690g |
Optical design
| Formula | Planar |
| Elements | 6 |
| Groups | 6 |
| Coating | Multi-Coated |
Pricing
- Typical used price (US market)
- $200 - $400
- Mint
- ~$500
Indicative, no dated source.