Best astrophotography lenses for the Sony a9 III
13 astrophotography lenses that fit the Sony a9 III (Sony E mount) — wide and bright for stars and night sky. Sorted brightest-aperture first; every spec from the manufacturer's catalog.
| Focal | Lens | Max aperture | Type | Coverage | Best for | Buy |
|---|---|---|---|---|---|---|
| 21mm | Voigtländer Nokton 21mm f/1.4 E | f/1.4 | prime | Full-frame | Wide-angleAstrophotographyLow-light | Amazon → |
| 24mm | Sigma 24mm f/1.4 DG DN Art | f/1.4 | prime | Full-frame | Wide-angleAstrophotographyStreetLow-light | Amazon → |
| 24mm | Sony FE 24mm f/1.4 GM | f/1.4 | prime | Full-frame | Wide-angleAstrophotographyLow-light | Amazon → |
| 14mm | Sony FE 14mm f/1.8 GM | f/1.8 | prime | Full-frame | Wide-angleAstrophotographyLandscapeLow-light | Amazon → |
| 16mm | Viltrox AF 16mm f/1.8 | f/1.8 | prime | Full-frame | Wide-angleAstrophotographyLandscape | Amazon → |
| 20mm | Sony FE 20mm f/1.8 G | f/1.8 | prime | Full-frame | Wide-angleAstrophotographyLandscape | Amazon → |
| 24mm | Samyang AF 24mm f/1.8 FE | f/1.8 | prime | Full-frame | Wide-angleAstrophotographyLandscapeLow-light | Amazon → |
| 15mm | Laowa 15mm f/2 Zero-D FE | f/2 | prime | Full-frame | Wide-angleAstrophotographyLandscapeLow-light | Amazon → |
| 25mm | Zeiss Batis 25mm f/2 | f/2 | prime | Full-frame | Wide-angleLandscapeAstrophotography | Amazon → |
| 12-24mm | Sony FE 12-24mm f/2.8 GM | f/2.8 | zoom | Full-frame | Wide-angleAstrophotographyLandscape | Amazon → |
| 14-24mm | Sigma 14-24mm f/2.8 DG DN Art | f/2.8 | zoom | Full-frame | Wide-angleAstrophotographyLandscape | Amazon → |
| 14mm | Samyang AF 14mm f/2.8 FE | f/2.8 | prime | Full-frame | Wide-angleAstrophotographyLandscape | Amazon → |
| 18mm | Zeiss Batis 18mm f/2.8 | f/2.8 | prime | Full-frame | Wide-angleLandscapeAstrophotography | Amazon → |
FAQ
What is the best astrophotography lens for the Sony a9 III?
Voigtländer Nokton 21mm f/1.4 E (21mm f/1.4) is the standout astrophotography option that fits the Sony a9 III. 13 astrophotography Sony E lenses fit in total — compare them below.
Do these astrophotography lenses fit the Sony a9 III?
Yes — every lens here is a Sony E mount lens, so it fits the Sony a9 III and covers its full-frame sensor.
All lenses for the Sony a9 III · the same use across mounts: Astrophotography lenses for Sony E · all cameras