Best astrophotography lenses for the Sigma fp L
6 astrophotography lenses that fit the Sigma fp L (L-Mount) — wide and bright for stars and night sky. Sorted brightest-aperture first; every spec from the manufacturer's catalog.
Start with the Sigma 20mm f/1.4 DG DN Art. At f/1.4 it is the brightest of the 6 astrophotography L-Mount lenses that fit the Sigma fp L — the full comparison is below.
Check the Sigma 20mm f/1.4 DG DN Art price on Amazon →
| Focal | Lens | Buy | Max aperture | Weight | Filter | Type | Coverage | Best for |
|---|---|---|---|---|---|---|---|---|
| 20mm | Sigma 20mm f/1.4 DG DN Art | Check price → | f/1.4 | 635 g | 82mm | prime | Full-frame | Wide-angleAstrophotographyLandscape |
| 24mm |  Sigma 24mm f/1.4 DG DN Art | Check price → | f/1.4 | 520 g | 72mm | prime | Full-frame | Wide-angleAstrophotographyStreetLow-light |
| 18mm |  Panasonic Lumix S 18mm f/1.8 | Check price → | f/1.8 | 340 g | 67mm | prime | Full-frame | Wide-angleAstrophotographyStreetLow-light |
| 24mm |  Panasonic Lumix S 24mm f/1.8 | Check price → | f/1.8 | 310 g | 67mm | prime | Full-frame | Wide-angleAstrophotographyLandscape |
| 10mm | 7Artisans AF 10mm f/2.5 (fisheye) | Check price → | f/2.5 | — | — | prime | Full-frame | Wide-angleAstrophotographyBudget |
| 14-24mm |  Sigma 14-24mm f/2.8 DG DN Art | Check price → | f/2.8 | 795 g | — | zoom | Full-frame | Wide-angleAstrophotographyLandscape |
One limit of this table: it lists only L-Mount lenses that mount natively on the Sigma fp L — lenses fitted through an adapter are not included here. See which mounts adapt to which.
Weight & weather sealing on the Sigma fp L
On long approaches the decision is often made by weight, not aperture. Manufacturer-published weights for 5 of the 6 lenses above (the other 1 has no verified weight in our dataset yet — omitted, never estimated):
| Lens | Weight | Weather sealing |
|---|---|---|
| Panasonic Lumix S 24mm f/1.8 | 310g | Weather-sealed (dust- and splash-resistant, rated to -10 °C (Panasonic)) |
| Panasonic Lumix S 18mm f/1.8 | 340g | Weather-sealed (dust- and splash-resistant, rated to -10 °C (Panasonic)) |
| Sigma 24mm f/1.4 DG DN Art | 520g | Weather-sealed |
| Sigma 20mm f/1.4 DG DN Art | 635g | Weather-sealed |
| Sigma 14-24mm f/2.8 DG DN Art | 795g | Weather-sealed |
Packing light? The lightest here is the Panasonic Lumix S 24mm f/1.8 at 310g. The lightest weather-sealed option is the Panasonic Lumix S 24mm f/1.8 at 310g — the same lens.
Complete the kit for the Sigma fp L
- The Sigma 20mm f/1.4 DG DN Art takes 82mm front filters. One 82mm set (polariser, ND) also fits every other 82mm lens you add later — see which ones. 82mm filters on Amazon →
- The Sigma fp L takes a BP-51 battery (SD, SDHC, SDXC memory card (UHS-Ⅱ supported) , Portable SSD (USB 3.0 connection, USB bus power supported)) — a spare battery and the right card class are body-specific, not lens-specific. BP-51 battery on Amazon →
FAQ
What is the best astrophotography lens for the Sigma fp L?
Sigma 20mm f/1.4 DG DN Art (20mm f/1.4) is the standout astrophotography option that fits the Sigma fp L. 6 astrophotography L-Mount lenses fit in total — compare them below.
Do these astrophotography lenses fit the Sigma fp L?
Yes — every lens here is a L-Mount lens, so it fits the Sigma fp L and covers its full-frame sensor.
What is the lightest astrophotography lens for the Sigma fp L?
The Panasonic Lumix S 24mm f/1.8 at 310g (manufacturer-published weight). The lightest weather-sealed option is the Panasonic Lumix S 24mm f/1.8 at 310g — the same lens. Weights for 5 of the 6 lenses on this page are in the weight table above.
Already own the Sigma fp L, shopping for a spare or an upgrade? Sigma fp L on Amazon →
All lenses for the Sigma fp L · the same use across mounts: Astrophotography lenses for L-Mount · all cameras