YongNuo AF 50mm f/1.8 Canon EF
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| Brand: | YongNuo |
| 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: | 55 mm |
| Diameter: | 73 mm |
| Max. focal length: | 50 mm |
| Min. focal length: | 18 mm |
| Focal length: | Permanent |
| Lens type: | Standard |
| Zoom ratio: | 27.8x |
| Minimum focus distance: | 0.45 m |
| Auto focus: | There is |
| Focal length of prime lens: | 50 mm |
| Bayonet: | Canon EF |
| Filter thread diameter: | 52 mm |
| Aperture F at max. focal length: | 1.8 |
| Aperture F at min. focal length: | 1.8 |
| Minimum aperture F: | 22 |
| Number of element groups: | 5 |
| Number of elements: | 6 |