Lens · prime
Mamiya Sekor C 500mm f/8
Mamiya · from 1974
Discontinuedmedium-format
Mamiya Sekor C 500mm f/8: 6 elements in 6 groups, 105mm filter thread, 1930g.
- Focal length
- 500mm
- Max aperture
- f/8
- Mount
- Mamiya RB
- Format
- medium-format
- Elements / groups
- 6 / 6
Known for
- Wildlife
- Sports
- Surveillance
- Nature
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)4, level 4 of 5
Contrast4, level 4 of 5
Flare resistance3, level 3 of 5
CA control5, level 5 of 5
Vignetting control5, level 5 of 5
Distortion control5, level 5 of 5
Bokeh: Ring-shaped highlights
Rendering: Mirror lens character
Colour: Neutral
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 | 500mm |
| Max Aperture | f/8 |
| Min Aperture | f/32 |
| Filter Size | 105mm |
| Weight | 1930g |
Optical design
| Formula | other |
| Elements | 6 |
| Groups | 6 |
| Coating | Multi-Coated |
| Special | Catadioptric mirror design |
Pricing
- Typical used price (US market)
- $400 - $700
- Mint
- ~$850
Indicative, no dated source.