Mamiya Sekor Z 50mm f/4.5 W RZ65
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| Weight: | 954 g |
| Brand: | Mamiya |
| Description: | Mount: Mamiya 645, lens type: standard, focal length: fixed, prime lens focal length: 50 mm, aperture F at min. focal length: 4.50 |
| Type: | Lens |
| Length: | 93 mm |
| Diameter: | 97 mm |
| Focal length: | Permanent |
| Lens type: | Standard |
| Max viewing angle: | 82 deg.min |
| Minimum focus distance: | 0.46 m |
| Focal length of prime lens: | 50 mm |
| Bayonet: | Mamiya 645 |
| Filter thread diameter: | 77 mm |
| Aperture F at min. focal length: | 4.5 |
| Minimum aperture F: | 32 |
| Number of element groups: | 11 |
| Number of elements: | 15 |