AskMaddi
What do reviewers say about the Sigma 45mm f2.8?
As of October 2026, among the 19 reviews we compiled, mount compatibility drew the most discussion: 56 claims from 16 of them, which we read as 29% positive, 66% neutral, 5% negative.
Synthesized from 19 reviewer sources for Sigma 45mm f2.8. Optical performance draws the most discussion: 28 positive, 8 neutral, and 15 negative across 51 sentiment markers. The most criticism lands on AF for stills: 33% positive, 24% neutral, 43% negative across 21 claims. Opinion is split on bokeh (9 positive, 5 neutral, 6 negative claims). AF performance splits by use case: stills sentiment runs net negative (7/5/9 across 21), while video sentiment runs net positive (7/11/2 across 20).
What are the Sigma 45mm f2.8 specifications?
Focal Length Mm45 mm
Max Aperturef/2.8
specs: designation
What do reviewers praise and criticize?
Optical Performance
28 pos · 8 neu · 15 neg
“MTF (resolution) The Sigma lens is already pretty sharp across the frame at f/2.8 albeit it doesn’t.” — Opticallimits
Build Quality
15 pos · 6 neu · 3 neg
“I like the lens hood on all of these new lenses, metal construction, something that we didn't always get with Sigma.” — TheDigitalDigest
Mount Compatibility
16 pos · 37 neu · 3 neg
“I do hope Sigma will also offer the E-mount version in silver as I'm sure plenty of Sony owners would also be interested.” — Gordon Laing
Price & Value
7 pos · 5 neu · 5 neg
“is that finally for the pricing by the time this video is made this lens is priced at 549 dollars in my opinion it's relatively affordable because again and again this is a full frame lens and we're all aware how expensive full frame lenses are in addition this is a full frame lens that works…” — Danboxing PH
Weight & Portability
3 pos · 1 neu · 1 neg
“in at 5.71 ounces or 162 grams the sigma is also very light it's 7.58 ounces or 215 grams and so for having such a high grade build it's actually quite a lightweight lens now one area where the lenses are not at all similar is in their ability to focus down closely and so in the case of the” — Dustin Abbott
More detail — 10 additional axes
Vignetting
2 pos · 4 neu · 2 neg
Chromatic Aberration
0 pos · 1 neu · 1 neg
Coma
0 pos · 1 neu · 1 neg
Bokeh
9 pos · 5 neu · 6 neg
“Let's check out this lens for video now on the A7S III while I talk about bokeh.” — Julia Trotti
Color Rendition
3 pos · 1 neu · 2 neg
Filter Thread
0 pos · 3 neu · 0 neg
Handling
17 pos · 0 neu · 2 neg
Which reviews is this based on? (19)
Every claim above traces to these original reviews. We don't write opinions — we synthesize theirs.
📹 Pro Reviews (19)
- Sigma 45mm f/2.8 DG DN Contemporary Series I Review - OpticalLimits
- Sigma 45mm f/2.8 DG DN 'C' lens review with samples (Full-frame & APS-C) Christopher Frost
- This Camera Lens Is A Beast // Sigma 45mm Contemporary Lens / Sigma FP Cross Culture Studios
- SIGMA 45MM F2.8 DG DN CONTEMPORARY | WHO THIS LENS IS FOR? Danboxing PH
- Sigma 45mm f2.8 Lens Review on my Leica SL2 Camera David Saylors
- Sigma 45mm F2.8 (Sony FE): First Look | 4K Dustin Abbott
- Testing the SIGMA "Contemporary" 45mm f2.8 LENS Evan Ranft
- Review: Sigma 45mm f2.8 DG DN Contemporary Lens for Sony E Gary Jahman Tech & Life
- I LOVE 45mm! Sigma 45mm f2.8 DG DN review Gordon Laing
- Sigma 45mm F2 8 Contemporary Lens L-Mount Review with Panasonic S5 Joshua Hall
- Sigma 45mm f2.8, 35mm f2 & 24mm f3.5 Hands-On Review Julia Trotti
- Sigma 45mm f/2.8 DG DN Contemporary - Short and Sweet, Big on Results - Full Review Leigh & Raymond Photography
- Testing Out and Reviewing the Sigma 45mm f2.8 Lens Muon Video
- Sigma 45mm f/2.8 GIVEAWAY WINNER! North Borders
- Sigma 45mm f/2.8: Better than you think? One Lens Only
- Why this is the best all-round prime lens EVER... Scott Edwards
- Sigma 45mm F2.8 DG DN Contemporary Lens Hands On Review The Pixel Connection
- Sigma 45mm F2.8 DG DN Contemporary Compact Lens Review For Sony e-mount Cameras TheDigitalDigest
- Sigma 45mm f/2.8 DG DN Contemporary: Budget Jewel of the L-Mount Alliance Three Blind Men and An Elephant