Tamron · Fujifilm X mount · Updated 31 Aug 2026
11-20mm F2.8 Di III-A RXD
Bright, compact, and usefully wider than standard zooms; good detail with visible software correction and less reach than Fuji’s 10-24.
Source-normalized independent lab result; cross-system precision is limited.
01 / EDITORIAL TAKE
What the evidence supports
Bright, compact, and usefully wider than standard zooms; good detail with visible software correction and less reach than Fuji’s 10-24.
- Best for
- Landscape, Video.
- Main tradeoff
- Its 335g 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
- 17–30mm
- Maximum aperture
- F2.8
- Focus
- AF
- Weight
- 335g
- Dimensions
- Ø73 × 86.5mm
- Weather resistance
- Yes
- Optical stabilization
- No
- US list price
- $659
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
A bright compact ultra-wide zoom with solid corners when stopped down; its short range targets interiors, astro, and video.
Resolution 78.0 ±12FujifilmXF 10-24mm F4 R OIS WRVersatile, 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 ±5