Sigma · Fujifilm X mount · Updated 31 Aug 2026
17-40mm F1.8 DC Art
A uniquely fast Art zoom with prime-class manufacturer MTF, internal zooming, and serious hybrid intent; X-mount lab evidence is new.
Maker MTF available, but its method is not normalized to Fujifilm's curves.
01 / EDITORIAL TAKE
Why this lens earns its place
A distinctive hybrid tool: prime-class speed across a useful normal range, with manufacturer evidence that supports reference-level ambition. The wider uncertainty is appropriate until X-mount lab coverage matures.
- Best for
- Events, video production, controlled low-light work, and photographers replacing several fast primes with one zoom.
- Main tradeoff
- At 535g it is neither a small travel zoom nor a complete standard range, and current placement relies more heavily on newer evidence.
02 / VERIFIED SPECIFICATIONS
The decision-grade facts
- 35mm equivalent
- 26–61mm
- Maximum aperture
- F1.8
- Focus
- AF
- Weight
- 535g
- Dimensions
- Ø72.9 × 118.2mm
- Weather resistance
- Yes
- Optical stabilization
- No
- US list price
- $919
MSRP is a static US list-price reference, not a live offer. Verified 2026-08-30. Price source ↗
03 / EVIDENCE
What the rank rests on
A maker chart exists, but its method is not standardized against Fujifilm or independent labs.
04 / ALTERNATIVES
Compare before deciding
The second-generation pro standard zoom combines prime-like detail with half-kilo handling and improved video behavior.
Resolution 96.5 ±5Sigma18-50mm F2.8 DC DN ContemporaryThe compact-value standard zoom: sharp on 26MP and still useful on 40MP, though 18mm corners expose the sensor’s demands.
Resolution 86.0 ±5Tamron17-70mm F2.8 Di III-A VC RXDThe do-most fast zoom: broad range, constant F2.8, stabilization, and strong optical performance; length is the principal tax.
Resolution 88.0 ±5