Sigma · Fujifilm X mount · Updated 31 Aug 2026
10-18mm F2.8 DC DN Contemporary
Impossibly small and consistently good, but pixel-level sharpness drops visibly on 40MP—especially outside the center.
Source-normalized independent lab result; cross-system precision is limited.
01 / EDITORIAL TAKE
What the evidence supports
Impossibly small and consistently good, but pixel-level sharpness drops visibly on 40MP—especially outside the center.
- Best for
- Travel, Landscape.
- Main tradeoff
- Its 250g weight, F2.8 maximum aperture, and lab mtf evidence profile should be considered against the alternatives below.
02 / VERIFIED SPECIFICATIONS
The decision-grade facts
- 35mm equivalent
- 15–27mm
- Maximum aperture
- F2.8
- Focus
- AF
- Weight
- 250g
- Dimensions
- Ø72.2 × 64.3mm
- Weather resistance
- Not specified
- Optical stabilization
- No
- US list price
- $729
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
Placement is led by 1 controlled resolution source; results are normalized only within compatible systems.
04 / ALTERNATIVES
Compare before deciding
Versatile, stabilized, and weather-ready. Very good at the wide end; the long end and extreme corners do not fully exploit 40MP.
Resolution 83.8 ±8FujifilmXF 16-80mm F4 R OIS WRExcellent range and stabilization for travel; sample variation and weaker corners keep it out of the high-resolution top tier.
Resolution 84.0 ±3ViltroxAF 9mm F2.8 AirA tiny autofocus ultra-wide with useful close focus and credible detail; a high-value alternative to much larger rectilinear glass.
Resolution 84.0 ±5