Leica APO-Summicron-SL 50 f/2 ASPH. vs Viltrox AF 50mm F2.0 Air
Every published spec side by side, with today's lowest prices for the market you've chosen.
Key differences
- Closest focus: 0.35 m on the APO-Summicron-SL 50 f/2 ASPH., against 0.51 m on the AF 50mm F2.0 Air.
- Max magnification: 0.20× on the APO-Summicron-SL 50 f/2 ASPH., against 0.11× on the AF 50mm F2.0 Air.
- Weight: 205 g on the AF 50mm F2.0 Air, against 740 g on the APO-Summicron-SL 50 f/2 ASPH..
APO-Summicron-SL 50 f/2 ASPH. or AF 50mm F2.0 Air: which should you buy?
Choose the APO-Summicron-SL 50 f/2 ASPH. for its closest focus and max magnification.
Choose the AF 50mm F2.0 Air for its weight.
On paper the APO-Summicron-SL 50 f/2 ASPH. wins more rows (2 to 1); if the AF 50mm F2.0 Air's strengths are the ones you shoot with, and its price is lower where you buy, it can still be the better buy.
 |  | |
|---|---|---|
| Lowest price today | $5,095 new $3,415 used | $179 new $229.10 used |
| Optics | ||
| Focal length | 50mm | 50mm |
| 35mm equivalent | 50mm (full frame) | 50mm (full frame) |
| Maximum apertureLower f-number lets in more light. A zoom wins only when it is as bright at both ends. | f/2 | f/2 |
| Minimum aperture | f/22 | f/16 |
| Made for | Full frame | Full frame |
| Elements / groups | 12 / 10 | 13 / 9 |
| Aperture blades | — | 9 |
| Closest focus | 0.35 m (best) | 0.51 m |
| Max magnification | 0.20× (best) | 0.11× |
| Focus & handling | ||
| Autofocus | Yes (Dual Syncro Drive) | Yes (STM) |
| Optical stabilisation | No | No |
| Weather sealed | Yes | — |
| Internal zoom | — | — |
| Aperture ring | No | No |
| Teleconverter compatible | No | No |
| Size & weight | ||
| Weight | 740 g | 205 g (best) |
| Diameter × length | 73 × 102 mm | 65 × 56.5 mm |
| Filter thread | 67 mm | 58 mm |
Green marks the better figure where “better” is unambiguous. A dash means the maker doesn't publish it or we haven't verified it yet.