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| Manufacturer | Leica | Carl Zeiss | Nikon Nikkor | Pentax |
|---|---|---|---|---|
| Model | Summicron-M 28 mm f/2.0 Asph | Distagon T* 28 mm f/2.0 ZF/ZK/ZE | MF 28 mm f/2 | smc FA 31 mm f/1.8 AL |
| Lenst style | Wide angle | Wide angle | Wide angle | Wide angle |
| Focal length | 28 mm | 28 mm | 28 mm | 31 mm |
| Maximum aperture | f/2 | f/2 | f/2 | f/1.8 |
| Angle of view | 75 o | 75.4 o | 75.4 o | 69.8 o |
| Closest focusing distance | 0.7 m | 0.24 m | 0 m | 0.3 m |
| Maximum magnification | 1:22 | 1:5 | 1:6.25 | |
| Minimum aperture | 16 | 22 | 22 | 22 |
| Diaphragm blades | 8 | 0 | 0 | 9 |
| Auto focus type | MF | MF | MF | AF |
| Lens Construction | 9 elements / 6 group | 10 elements / 8 group | 0 elements / 0 group | 9 elements / 7 group |
| Filter diameter | 0 mm | 58 mm | 52 mm | 58 mm |
| Macro Yes/No | No | No | No | No |
| Stabilization | No | No | No | No |
| Available mounts | Leica M / VM-Mount | Canon EF Nikon F Pentax K |
Nikon F | Pentax K |
| Dimensions | 40.8 x 53 mm | 65 x 94 mm | 0 x 0 mm | 66 x 68.5 mm |
| Weight | 270 g | 530 g | 0 g | 345 g |
| Additional information | Internal thread for screw-in type filters E 46 | |||
| Score [max 5.00] | No score | |||
| Our Review |
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