Mamiya Sekor C 55-110mm f/4.5 M645
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| Weight: | 800 g |
| Brand: | Mamiya |
| Description: | Mount: Mamiya 645, lens type: standard, focal length: variable, min. focal length: 55 mm, max. focal length: 110 mm, aperture F at min. focal length: 4.50, aperture F at max. focal length |
| Type: | Lens |
| Length: | 104 mm |
| Diameter: | 77 mm |
| Max. focal length: | 110 mm |
| Min. focal length: | 55 mm |
| Focal length: | Variable |
| Lens type: | Standard |
| Zoom ratio: | 2x |
| Max viewing angle: | 65 deg.min |
| Minimum focus distance: | 1.5 m |
| Bayonet: | Mamiya 645 |
| Filter thread diameter: | 67 mm |
| Aperture F at max. focal length: | 4.5 |
| Aperture F at min. focal length: | 4.5 |
| Minimum aperture F: | 32 |
| Minimum viewing angle: | 35 deg.min |
| Number of element groups: | 10 |
| Number of elements: | 11 |