Viltrox · Fujifilm X mount · Updated 31 Aug 2026
AF 9mm F2.8 Air
A tiny autofocus ultra-wide with useful close focus and credible detail; a high-value alternative to much larger rectilinear glass.
Source-normalized independent lab result; cross-system precision is limited.
01 / EDITORIAL TAKE
What the evidence supports
A tiny autofocus ultra-wide with useful close focus and credible detail; a high-value alternative to much larger rectilinear glass.
- Best for
- Architecture, Travel.
- Main tradeoff
- Its 175g 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
- 14mm
- Maximum aperture
- F2.8
- Focus
- AF
- Weight
- 175g
- Dimensions
- Ø65 × 56.7mm
- Weather resistance
- Not specified
- Optical stabilization
- No
- US list price
- $199
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 ±8Sigma10-18mm F2.8 DC DN ContemporaryImpossibly small and consistently good, but pixel-level sharpness drops visibly on 40MP—especially outside the center.
Resolution 83.0 ±5Sigma12mm F1.4 DC ContemporaryA compact, very fast ultra-wide with ambitious MTF and modern AF—an unusually portable night-sky and interior option.
Resolution 88.0 ±9