Best astrophotography lenses for the Fujifilm X-S20

Fujifilm X-S20 · 2023 · 26.1 MP APS-C · 491 g · in-body stabilisation

19 astrophotography lenses that fit the Fujifilm X-S20 (Fujifilm X 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 19 astrophotography Fujifilm X lenses that fit the Fujifilm X-S20 — the full comparison is below.

Last verified 2026-09-01 · Fujifilm X mount · Fujifilm APS-C body · 1.5× crop factor

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which lenses we compare.

See price on Amazon

FocusAny focusAutofocusManual focusStabilisationAny stabilisationNamed stabiliserNo named stabiliserWeather sealingAny sealingWeather-sealedNo full sealing claimUnverifiedWeightAny weightUnder 500 g500–999 g1,000 g or moreUnknown weightPriceAny current priceUnder $500$500–999$1,000–1,999$2,000 or moreReset filters

Showing 19 of 19 lenses

Stabilisation uses a marker in the manufacturer model name; no marker is not a negative claim. Price filters use a current price when available.

Focal	Lens	Buy	Max aperture	Weight	Filter	Type	Coverage	Best for
16mm	Sirui Sniper 16mm f/1.2	See price on Amazon	f/1.2	398 g	58mm	prime	APS-C	Wide-angleAstrophotographyVloggingLow-light
12mm	Sigma 12mm f/1.4 DC Contemporary	See price on Amazon	f/1.4	235 g	62mm	prime	APS-C	Wide-angleAstrophotographyLow-light
13mm	Viltrox AF 13mm f/1.4	See price on Amazon	f/1.4	420 g	—	prime	APS-C	Wide-angleAstrophotographyVlogging
15mm	Sigma 15mm f/1.4 DC Contemporary	See price on Amazon	f/1.4	220 g	—	prime	APS-C	Wide-angleAstrophotographyLow-light
16mm	Fujifilm XF 16mm f/1.4 R WR	See price on Amazon	f/1.4	375 g	67mm	prime	APS-C	Wide-angleAstrophotographyStreetLow-light
16mm	Sigma 16mm f/1.4 DC DN Contemporary	See price on Amazon	f/1.4	405 g	67mm	prime	APS-C	Wide-angleStreetLow-lightVlogging
15mm	Viltrox AF 15mm f/1.7 Air	See price on Amazon	f/1.7	180 g	58mm	prime	APS-C	Wide-angleLandscapeLow-light
17mm	TTArtisan AF 17mm f/1.8 Air	See price on Amazon	f/1.8	—	—	prime	APS-C	Wide-angleLandscapeVloggingBudgetCompact
12mm	Samyang AF 12mm f/2 X	See price on Amazon	f/2	212 g	—	prime	APS-C	Wide-angleAstrophotographyLandscapeBudget
8-16mm	Fujifilm XF 8-16mm f/2.8 R LM WR	See price on Amazon	f/2.8	805 g	—	zoom	APS-C	Wide-angleAstrophotographyLandscape
9mm	Laowa 9mm f/2.8 Zero-DMF	See price on Amazon	f/2.8	215 g	—	prime	APS-C	Wide-angleAstrophotographyLandscape
9mm	Viltrox AF 9mm f/2.8 Air	See price on Amazon	f/2.8	175 g	58mm	prime	APS-C	Wide-angleAstrophotographyVloggingBudget
10-18mm	Sigma 10-18mm f/2.8 DC DN Contemporary	See price on Amazon	f/2.8	250 g	67mm	zoom	APS-C	Wide-angleLandscapeVlogging
10mm	7Artisans AF 10mm f/2.8 (APS-C)	See price on Amazon	f/2.8	232 g	62mm	prime	APS-C	Wide-angleAstrophotographyVloggingBudget
11-20mm	Tamron 11-20mm f/2.8 Di III-A RXD	See price on Amazon	f/2.8	335 g	67mm	zoom	APS-C	Wide-angleLandscapeAstrophotography
11-18mm	Tokina atx-m 11-18mm f/2.8 X	See price on Amazon	f/2.8	320 g	67mm	zoom	APS-C	Wide-angleLandscapeAstrophotography
14mm	Fujifilm XF 14mm f/2.8 R	See price on Amazon	f/2.8	235 g	58mm	prime	APS-C	Wide-angleLandscapeAstrophotography
16mm	Fujifilm XF 16mm f/2.8 R WR	See price on Amazon	f/2.8	155 g	49mm	prime	APS-C	Wide-angleStreetBudget
8mm	Fujifilm XF 8mm f/3.5 R WR	See price on Amazon	f/3.5	215 g	62mm	prime	APS-C	Wide-angleAstrophotographyLandscape

One limit of this table: it lists only Fujifilm X lenses that mount natively on the Fujifilm X-S20 — lenses fitted through an adapter are not included here. See which mounts adapt to which.

What these focal lengths actually give you on the Fujifilm X-S20

The Fujifilm X-S20 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 Fujifilm XF 8-16mm f/2.8 R LM WR, frames like 12mm — not as wide as its marked number suggests. For a genuinely wide view on the Fujifilm X-S20 you want a lens marked around 16mm or shorter.

Effective focal lengths are the marked focal length × the 1.5× sensor crop factor — the field of view, not a change in the lens itself. Aperture and depth of field are unaffected.

How long can you expose before the stars trail on the Fujifilm X-S20?

A rule-of-thumb answer for each lens above, at its widest focal length and widest aperture. The NPF rule takes the Fujifilm X-S20's pixel size into account; the older 500 rule does not, and gives longer times that can show slight trails on today's sensors.

Calculated, not measured. NPF rule (simplified): (35 × f-number + 30 × pixel pitch in µm) ÷ focal length in mm. Pixel pitch ≈ 3.7 µm, estimated from the Fujifilm X-S20's 26.1MP and a nominal 23.5 × 15.6 mm APS-C sensor. 500 rule: 500 ÷ (focal length × 1.5× crop factor). Both assume stars near the celestial equator; stars near the pole trail less. Zooming in shortens both times.

Weight & weather sealing on the Fujifilm X-S20

On long approaches the decision is often made by weight, not aperture. Published weights for 18 of the 19 lenses above (the other 1 has no verified weight in our dataset yet — omitted, never estimated):

Packing light? The lightest here is the Fujifilm XF 16mm f/2.8 R WR at 155g. The lightest weather-sealed option is the Samyang AF 12mm f/2 X at 212g.

Weights and sealing as published for each lens — 14 from the manufacturer's own spec page, 4 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

FAQ

What is the best astrophotography lens for the Fujifilm X-S20?
Sirui Sniper 16mm f/1.2 (16mm f/1.2) is the standout astrophotography option that fits the Fujifilm X-S20. 19 astrophotography Fujifilm X lenses fit in total — compare them below.

Do these astrophotography lenses fit the Fujifilm X-S20?
Yes — every lens here is a Fujifilm X mount lens, so it fits the Fujifilm X-S20 and covers its APS-C sensor.

What is the lightest astrophotography lens for the Fujifilm X-S20?
The Fujifilm XF 16mm f/2.8 R WR at 155g (manufacturer-published weight). The lightest weather-sealed option is the Samyang AF 12mm f/2 X at 212g. Weights for 18 of the 19 lenses on this page are in the weight table above.

Already own the Fujifilm X-S20, shopping for a spare or an upgrade? See price on Amazon

Amazon links are affiliate links — we may earn a commission at no extra cost to you.

Other uses on the Fujifilm X-S20: Wide-angle (24) Landscape (15) Vlogging (8) Budget (38) Travel (16) Low-light (34) Everyday (37) Compact (10) Pro standard zoom (5) Street (26) Standard prime (19) Telephoto (17) Budget pro (5) Portrait (30) Macro (4) Sports & action (9) Wildlife (7)

All lenses for the Fujifilm X-S20 · the same use across mounts: Astrophotography lenses for Fujifilm X · all cameras

Sirui Sniper 16mm f/1.2Affiliate linkSee price on Amazon