Lens Models
Lens models are any interchangeable lens that has been marketed
Mamiya Sekor 250mm f/5
 Summary |
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|---|---|
| Manufacturer | Mamiya 
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| Model | Sekor 250mm f/5 |
| Mount | Mamiya Press |
 Optics |
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| Zoom |  |
| Focal length | 250mm |
| Aperture | f/5.0 |
| Elements/Groups | 6/4 |
| Diagonal angle of view | 23° |
| Lens type | Medium telephoto |
| Negative size | 6×9 |
 Features |
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| Autofocus | |
 Physical |
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| Weight | 1825g |
| Filter thread | 105.0mm |
 Misc |
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| Notes | Ernostar type |
 Meta |
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| Sharing |
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