APO-Summicron-SL 50 f/2 ASPH.
| Order number | 11 185 |
| Field angle (diagonal, horizontal, vertical) | 47.2°/40°/27.3° |
| Optical design | |
| Number of lenses/groups | 12/10 |
| Number of asph. surfaces / lenses | 4/3 |
| Entrance pupil position | 63.2 mm at ∞ |
| Distance setting | |
| Working range | ∞ to 0.35 m |
| Smallest object field | 120 x 180 mm |
| Largest reproduction ratio | 1:5 |
| Aperture | |
| Setting/function | Electronically controlled aperture, set using turn/push wheel on camera, including half and third values |
| Aperture setting range | 2 - 22 |
| Lowest value | 22 |
| Bayonet/sensor format | L-Mount, full-frame 35 mm format |
| Filter mount | E67 |
| Dimensions and weight | |
| Length to bayonet mount | 102 mm |
| Largest diameter | 73 mm |
| Weight | 740 g |
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APO-Summicron-SL 50 f/2 ASPH.
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