Viltrox AF 20mm F2.8 Air vs Zeiss Batis 2.8/18
Every published spec side by side, with today's lowest prices for the market you've chosen.
Key differences
- Closest focus: 0.19 m on the AF 20mm F2.8 Air, against 0.25 m on the Batis 2.8/18.
- Max magnification: 0.17× on the AF 20mm F2.8 Air, against 0.10× on the Batis 2.8/18.
- Weight: 157 g on the AF 20mm F2.8 Air, against 330 g on the Batis 2.8/18.
AF 20mm F2.8 Air or Batis 2.8/18: which should you buy?
Choose the AF 20mm F2.8 Air for its closest focus, max magnification and weight.
On published specs the Batis 2.8/18 leads the AF 20mm F2.8 Air nowhere; buy it for its price, its handling or the lenses you already own.
On paper the AF 20mm F2.8 Air wins more rows (3 to 0); if the Batis 2.8/18'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 | $150 used | $1,349 new $549 used |
| Optics | ||
| Focal length | 20mm | 18mm |
| 35mm equivalent | 20mm (full frame) | 18mm (full frame) |
| Maximum apertureLower f-number lets in more light. A zoom wins only when it is as bright at both ends. | f/2.8 | f/2.8 |
| Minimum aperture | f/16 | f/22 |
| Made for | Full frame | Full frame |
| Elements / groups | 10 / 8 | 11 / 10 |
| Aperture blades | 7 | — |
| Closest focus | 0.19 m (best) | 0.25 m |
| Max magnification | 0.17× (best) | 0.10× |
| Focus & handling | ||
| Autofocus | Yes (STM) | Yes (Linear motor) |
| Optical stabilisation | No | No |
| Weather sealed | — | Yes |
| Internal zoom | — | — |
| Aperture ring | — | No |
| Teleconverter compatible | No | No |
| Size & weight | ||
| Weight | 157 g (best) | 330 g |
| Diameter × length | 65 × 59.5 mm | 78 × 80 mm |
| Filter thread | 52 mm | 77 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.