Best astrophotography lenses for the Sony a6700
26 astrophotography lenses that fit the Sony a6700 (Sony E mount) — wide and bright for stars and night sky. Sorted brightest-aperture first; every spec from the manufacturer's catalog.
Start with the Sirui Sniper 16mm f/1.2. At f/1.2 it is the brightest of the 26 astrophotography Sony E lenses that fit the Sony a6700 — the full comparison is below.
Check the Sirui Sniper 16mm f/1.2 price on Amazon →
One limit of this table: it lists only Sony E lenses that mount natively on the Sony a6700 — lenses fitted through an adapter are not included here. See which mounts adapt to which.
What these focal lengths actually give you on the Sony a6700
The Sony a6700 has an APS-C sensor, so it sees a 1.5× crop of what each lens projects. Every focal length below therefore frames 1.5× tighter than its marked number. That works against you here: the widest option, the Laowa 9mm f/2.8 Zero-D, frames like 14mm — not as wide as its marked number suggests. For a genuinely wide view on the Sony a6700 you want a lens marked around 16mm or shorter.
| Lens | Marked | Frames like, on the Sony a6700 |
|---|---|---|
| Sirui Sniper 16mm f/1.2 | 16mm | 24mm |
| Viltrox AF 13mm f/1.4 | 13mm | 20mm |
| Voigtländer Nokton 21mm f/1.4 E | 21mm | 32mm |
| Sigma 24mm f/1.4 DG DN Art | 24mm | 36mm |
| Sony FE 24mm f/1.4 GM | 24mm | 36mm |
| Sony E 11mm f/1.8 | 11mm | 17mm |
| Yongnuo YN 11mm f/1.8S DA DSM WL | 11mm | 17mm |
| Sony FE 14mm f/1.8 GM | 14mm | 21mm |
| Viltrox AF 16mm f/1.8 | 16mm | 24mm |
| Sony FE 16mm f/1.8 G | 16mm | 24mm |
| Yongnuo YN 16mm f/1.8S DA DSM | 16mm | 24mm |
| Sony FE 20mm f/1.8 G | 20mm | 30mm |
| Samyang AF 24mm f/1.8 FE | 24mm | 36mm |
| 7Artisans AF 24mm f/1.8 | 24mm | 36mm |
| Laowa 15mm f/2 Zero-D FE | 15mm | 23mm |
| Zeiss Batis 25mm f/2 | 25mm | 38mm |
| 7Artisans AF 10mm f/2.5 (fisheye) | 10mm | 15mm |
| Laowa 9mm f/2.8 Zero-D | 9mm | 14mm |
| 7Artisans AF 10mm f/2.8 (APS-C) | 10mm | 15mm |
| Tokina atx-m 11-18mm f/2.8 E | 11-18mm | 17–27mm |
| Sony FE 12-24mm f/2.8 GM | 12-24mm | 18–36mm |
| Tamron 12-20mm F2.8 (A084) | 12-20mm | 18–30mm |
| Sigma 14-24mm f/2.8 DG DN Art | 14-24mm | 21–36mm |
| Samyang AF 14mm f/2.8 FE | 14mm | 21mm |
| Zeiss Batis 18mm f/2.8 | 18mm | 27mm |
| Sony FE 12-24mm f/4 G | 12-24mm | 18–36mm |
Weight & weather sealing on the Sony a6700
On long approaches the decision is often made by weight, not aperture. Published weights for 23 of the 26 lenses above (the other 3 have no verified weight in our dataset yet — omitted, never estimated):
| Lens | Weight | Weather sealing |
|---|---|---|
| Sony E 11mm f/1.8 | 181g | Weather-sealed |
| Laowa 9mm f/2.8 Zero-D | 215g | None claimed |
| Samyang AF 24mm f/1.8 FE | 230g | Not verified |
| Yongnuo YN 11mm f/1.8S DA DSM WL | 260g | Not verified (weight from the third-party E-mount list row Yongnuo 'YN11mm F1.8S DA DSM WL'; sealing not stated on the source page) |
| Yongnuo YN 16mm f/1.8S DA DSM | 274g | Not verified (weight from the third-party E-mount list row Yongnuo 'YN16mm F1.8S DA DSM'; sealing not stated on the source page) |
| Sony FE 16mm f/1.8 G | 304g | Not verified (weight from Sony product code SEL-16F18G; sealing not stated on the source page) |
| Zeiss Batis 18mm f/2.8 | 330g | Weather-sealed |
| Zeiss Batis 25mm f/2 | 335g | Weather-sealed |
| Tokina atx-m 11-18mm f/2.8 E | 335g | None claimed |
| Sony FE 20mm f/1.8 G | 373g | Weather-sealed |
| Sirui Sniper 16mm f/1.2 | 384g | Not verified (weight from the third-party E-mount list row '16mm F1.2'; sealing not stated on the source page) |
| Viltrox AF 13mm f/1.4 | 415g | Mount gasket only (dust-proof seal at the aperture ring and mount joint, not full weather sealing) |
| Sony FE 24mm f/1.4 GM | 445g | Weather-sealed |
| Sony FE 14mm f/1.8 GM | 460g | Weather-sealed |
| Laowa 15mm f/2 Zero-D FE | 500g | None claimed |
| 7Artisans AF 10mm f/2.5 (fisheye) | 504g | Not verified (weight from the third-party E-mount list row 'AF 10mm F2.5'; sealing not stated on the source page) |
| Samyang AF 14mm f/2.8 FE | 505g | None claimed |
| Sigma 24mm f/1.4 DG DN Art | 510g | Weather-sealed |
| Viltrox AF 16mm f/1.8 | 550g | Not verified |
| Sony FE 12-24mm f/4 G | 565g | Not verified (weight from Sony product code SEL-1224G; sealing not stated on the source page) |
| Tamron 12-20mm F2.8 (A084) | 570g | Weather-sealed (Tamron's own term is "Moisture-Resistant Construction" — "leak-resistant seals throughout the lens barrel"; the maker does not use the words weather-sealed. Source page states "Length and weight are for Sony E-mount", so 570g is the Sony E figure (the nikon-z entry's 585g comes from a different source and is not in conflict).) |
| Sigma 14-24mm f/2.8 DG DN Art | 795g | Weather-sealed |
| Sony FE 12-24mm f/2.8 GM | 847g | Weather-sealed |
Packing light? The lightest here is the Sony E 11mm f/1.8 at 181g. The lightest weather-sealed option is the Sony E 11mm f/1.8 at 181g — the same lens.
Complete the kit for the Sony a6700
- The Sirui Sniper 16mm f/1.2 takes 58mm front filters. One 58mm set (polariser, ND) also fits every other 58mm lens you add later — see which ones. 58mm filters on Amazon →
- The Sony a6700 takes an NP-FZ100 battery (SD cards (UHS-I and UHS-II compatible)) — a spare battery and the right card class are body-specific, not lens-specific. NP-FZ100 battery on Amazon →
FAQ
What is the best astrophotography lens for the Sony a6700?
Sirui Sniper 16mm f/1.2 (16mm f/1.2) is the standout astrophotography option that fits the Sony a6700. 26 astrophotography Sony E lenses fit in total — compare them below.
Do these astrophotography lenses fit the Sony a6700?
Yes — every lens here is a Sony E mount lens, so it fits the Sony a6700 and covers its APS-C sensor.
What is the lightest astrophotography lens for the Sony a6700?
The Sony E 11mm f/1.8 at 181g (manufacturer-published weight). The lightest weather-sealed option is the Sony E 11mm f/1.8 at 181g — the same lens. Weights for 23 of the 26 lenses on this page are in the weight table above.
Already own the Sony a6700, shopping for a spare or an upgrade? Sony a6700 on Amazon →
All lenses for the Sony a6700 · the same use across mounts: Astrophotography lenses for Sony E · all cameras