FitMyLensthe lens-by-mount reference
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Low-light lenses for L-Mount

17 low-light options that fit Panasonic Lumix S, Leica SL, and Sigma fp full-frame bodies (the L-Mount Alliance) — fast apertures (f/1.8 and brighter) for dim conditions. Every spec from the manufacturer's own product name and catalog.

Last verified 2026-09-01

Shooting a specific body? Per-camera fits: Leica SL3 · Panasonic Lumix S1R II · Panasonic Lumix S5 · Panasonic Lumix S5 II · Panasonic Lumix S5 IIX · Panasonic Lumix S9 · Sigma fp L.

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FocalLensBuyMax apertureWeightTypeCoverageBest for
16mmSigma 16mm f/1.4 DC DN Contemporary Lens for L Mount with PC Software AccSigma 16mm f/1.4 DC DN ContemporaryAmazon →f/1.4415 gprimeAPS-CWide-angleStreetLow-lightVlogging
17-40mmSigma 17-40mm F1.8 DC | Art for L MountSigma 17-40mm f/1.8 DC ArtAmazon →f/1.8535 gzoomAPS-CEverydayStandard primeLow-lightPro standard zoom
18mmPanasonic LUMIX S Series Camera Lens, 18mm F1.8 L-Mount Interchangeable Lens for Mirrorless Full Frame Digital Cameras -Panasonic Lumix S 18mm f/1.8Amazon →f/1.8340 gprimeFull-frameWide-angleAstrophotographyStreetLow-light
23mmSigma 23mm F1.4 DC DN for L MountSigma 23mm f/1.4 DC DN ContemporaryAmazon →f/1.4340 gprimeAPS-CStreetEverydayLow-light
24mmSigma 24mm F1.4 Art DG DN Lens for L MountSigma 24mm f/1.4 DG DN ArtAmazon →f/1.4520 gprimeFull-frameWide-angleAstrophotographyStreetLow-light
28-45mmSigma 28-45mm F1.8 DG DN for L MountSigma 28-45mm f/1.8 DG DN ArtAmazon →f/1.8960 gzoomFull-frameStandard primeEverydayLow-lightPro standard zoom
30mmSigma 30mm f/1.4 DC DN Contemporary Lens for L Mount with PC Software AccSigma 30mm f/1.4 DC DN ContemporaryAmazon →f/1.4280 gprimeAPS-CStreetEverydayLow-lightBudget
35mmPanasonic LUMIX S Series Camera Lens, 35mm F1.8 L-Mount Interchangeable Lens for Mirrorless Full Frame Digital Cameras, Panasonic Lumix S 35mm f/1.8Amazon →f/1.8295 gprimeFull-frameStreetEverydayLow-light
35mmSigma 35mm F1.4 DG DN for L MountSigma 35mm f/1.4 DG DN ArtAmazon →f/1.4645 gprimeFull-frameStreetLow-lightWedding & event
35mmSigma 35mm F1.4 DG II | Art for L-MountSigma 35mm F1.4 DG II ArtAmazon →f/1.4530 gprimeFull-frameStreetLow-lightWedding & event
50mmPanasonic LUMIX S Series Camera Lens, 50mm F1.8 L-Mount Interchangeable Lens for Mirrorless Full Frame Digital Cameras, Panasonic Lumix S 50mm f/1.8Amazon →f/1.8300 gprimeFull-frameStandard primeBudgetLow-light
50mmPanasonic LUMIX S PRO 50mm F1.4 Lens, Full-Frame L Mount, LEICA Certified, Dust/Splash/Freeze-Resistant for Panasonic LUPanasonic Lumix S PRO 50mm f/1.4Amazon →f/1.4955 gprimeFull-framePortraitLow-lightWedding & eventStandard prime
50mmSigma 50mm F1.4 DG DN F for L MountSigma 50mm f/1.4 DG DN ArtAmazon →f/1.4670 gprimeFull-framePortraitLow-lightStandard primeWedding & event
50mmSigma 50mm F 1.2 DG DN for L MountSigma 50mm f/1.2 DG DN ArtAmazon →f/1.2745 gprimeFull-frameStandard primePortraitLow-light
56mmSigma 56mm F1.4 DC DN Contemporary for L MountSigma 56mm f/1.4 DC DN ContemporaryAmazon →f/1.4285 gprimeAPS-CPortraitLow-lightBudget pro
85mm7artisans 85mm f/1.8 Full Frame Autofocus Lens for Portrait | Compatible with Panasonic LUMIX S Series & Sigma L Mount CPanasonic Lumix S 85mm f/1.8Amazon →f/1.8355 gprimeFull-framePortraitLow-light
85mmSigma 85mm F1.4 DG DN, for L-MountSigma 85mm f/1.4 DG DN ArtAmazon →f/1.4630 gprimeFull-framePortraitWedding & eventLow-light

Weight & weather sealing: which of these can you carry all day?

On long approaches the decision is often made by weight, not aperture. Published weights for 17 of the 17 lenses above:

LensWeightWeather sealing
Sigma 30mm f/1.4 DC DN Contemporary280gWeather-sealed
Sigma 56mm f/1.4 DC DN Contemporary285gWeather-sealed
Panasonic Lumix S 35mm f/1.8295gWeather-sealed
Panasonic Lumix S 50mm f/1.8300gWeather-sealed
Panasonic Lumix S 18mm f/1.8340gWeather-sealed (dust- and splash-resistant, rated to -10 °C (Panasonic))
Sigma 23mm f/1.4 DC DN Contemporary340gMount gasket only
Panasonic Lumix S 85mm f/1.8355gWeather-sealed
Sigma 16mm f/1.4 DC DN Contemporary415gWeather-sealed
Sigma 24mm f/1.4 DG DN Art520gWeather-sealed
Sigma 35mm F1.4 DG II Art530gNot verified (Source announcement states "The figures are for L-Mount" and carries no dust/splash claim, so sealing is left unverified and no Sony E weight is recorded.)
Sigma 17-40mm f/1.8 DC Art535gWeather-sealed
Sigma 85mm f/1.4 DG DN Art630gWeather-sealed
Sigma 35mm f/1.4 DG DN Art645gWeather-sealed
Sigma 50mm f/1.4 DG DN Art670gWeather-sealed
Sigma 50mm f/1.2 DG DN Art745gWeather-sealed
Panasonic Lumix S PRO 50mm f/1.4955gWeather-sealed
Sigma 28-45mm f/1.8 DG DN Art960gWeather-sealed

Packing light? The lightest here is the Sigma 30mm f/1.4 DC DN Contemporary at 280g. The lightest weather-sealed option is the Sigma 30mm f/1.4 DC DN Contemporary at 280g — the same lens.

Weights and sealing as published for each lens — 12 from the manufacturer's own spec page, 5 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

All L-Mount lenses: the full L-Mount index · other mounts: Sony E · Canon RF · Nikon Z · Fujifilm X · Micro Four Thirds.