Lens · fisheye
Mamiya Sekor C 37mm f/4.5 Fisheye
Mamiya · from 1974
Discontinuedmedium-format
Mamiya Sekor C 37mm f/4.5 Fisheye: 9 elements in 6 groups, 1370g.
- Focal length
- 37mm
- Max aperture
- f/4.5
- Mount
- Mamiya RB
- Format
- medium-format
- Elements / groups
- 9 / 6
Known for
- Creative work
- Interiors
- Real estate
- Extreme wide
Considerations
- Leaf shutter in the lens: cock the camera and lens shutters before mounting
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
Contrast4, level 4 of 5
Flare resistance4, level 4 of 5
CA control4, level 4 of 5
Vignetting control3, level 3 of 5
Distortion control1, level 1 of 5
Bokeh: Fisheye distortion
Rendering: 180° diagonal coverage
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 RB |
| Focal Length | 37mm |
| Max Aperture | f/4.5 |
| Min Aperture | f/32 |
| Weight | 1370g |
Optical design
| Formula | Retrofocus |
| Elements | 9 |
| Groups | 6 |
| Coating | Multi-Coated |
Pricing
- Typical used price (US market)
- $500 - $850
- Mint
- ~$1000
Indicative, no dated source.