Lens Models
Lens models are any interchangeable lens that has been marketed
Mamiya Sekor C 180mm
 Summary |
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|---|---|
| Manufacturer | Mamiya 
|
| Model | Sekor C 180mm |
| Mount | Mamiya RB67 |
| Marketed | 1974 50 years ago |
 Optics |
|
| Zoom |  |
| Focal length | 180mm |
| Aperture | f/4.5-45.0 |
| Closest focus | 0.85m |
| Elements/Groups | 5/3 |
| Diagonal angle of view | 25° |
| Maximum magnification | 0.260× |
| Negative size | 6×7 |
| Aperture blades | 8 |
| Coating | Multi coated |
 Features |
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| Autofocus | |
| Hood | 77mm push-on |
| Shutter model | Seiko |
 Physical |
|
| Weight | 750g |
| Filter thread | 77.0mm |
 Misc |
|
| Link | https://rb67.helluin.org/lenses/180mm-f4-5c/ |
 Meta |
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