AskMaddi
What do reviewers say about the Sigma 20mm f1.4?
As of November 2026, among the 4 reviews we compiled, mount compatibility drew the most discussion: 43 claims, which we read as 16% positive, 84% neutral, 0% negative.
Synthesized from 4 reviewer sources for Sigma 20mm f1.4. Optical performance draws the most discussion: 21 positive, 10 neutral, and 10 negative across 41 sentiment markers.
What are the Sigma 20mm f1.4 specifications?
Focal Length Mm20 mm
Max Aperturef/1.4
specs: designation
What do reviewers praise and criticize?
Optical Performance
21 pos · 10 neu · 10 neg
“A score of 33 P- Mpix for sharpness on the 5DS R is outstanding (in fact, it ranks as the.” — Dxomark
Build Quality
3 pos · 3 neu · 1 neg
“Sealing: Yes, all three lenses have a rubber grommet at the lens-mount plus further special weather-sealing throughout the construction.” — Cameralabs
Mount Compatibility
7 pos · 36 neu · 0 neg
“Sigma 20mm F1.4 DG HSM A Canon mount review: Tempting new addition - DXOMARK Skip to content Lenss > Sigma 20mm F14 DG HSM A.” — Dxomark
Price & Value
1 pos · 9 neu · 2 neg
“19% VAT) which makes it the most expensive of their Art f1.4 lenses..” — Cameralabs
Weight & Portability
0 pos · 2 neu · 0 neg
More detail — 9 additional axes
Distortion
0 pos · 1 neu · 1 neg
Vignetting
1 pos · 4 neu · 4 neg
Chromatic Aberration
1 pos · 3 neu · 0 neg
Coma
2 pos · 2 neu · 0 neg
Bokeh
3 pos · 2 neu · 0 neg
Filter Thread
1 pos · 6 neu · 0 neg
Dimensions
2 pos · 8 neu · 0 neg
Handling
1 pos · 1 neu · 2 neg
AF Noise
0 pos · 1 neu · 2 neg
Which reviews is this based on? (4)
Every claim above traces to these original reviews. We don't write opinions — we synthesize theirs.