Name: Canon 20mm f2.8
Brand: Canon

What do reviewers say about the Canon 20mm f2.8?

As of October 2026, among the 14 reviews we compiled, optical performance drew the most discussion: 69 claims, which we read as 44% positive, 23% neutral, 33% negative.

Synthesized from 14 reviewer sources for Canon 20mm f2.8. Optical performance draws the most discussion: 30 positive, 16 neutral, and 23 negative across 69 sentiment markers. The most criticism lands on vignetting: 25% positive, 38% neutral, 37% negative across 16 claims.

What are the Canon 20mm f2.8 specifications?

Focal Length Mm20 mm

Max Aperturef/2.8

specs: designation

What do reviewers praise and criticize?

Optical Performance

30 pos · 16 neu · 23 neg

“In the middle of the image, we see absolutely perfect sharpness and contrast straight from f1.4.” — Christopher Frost

Build Quality

3 pos · 3 neu · 1 neg

“It features the high-end build quality that you'd expect from a Canon L series lens, including a metal mount, a Florine coating on the front element” — Wilkinson Cameras

Mount Compatibility

6 pos · 16 neu · 6 neg

“hi I'm Dustin Abbott and I'm here today to give you my review of the Tamron 11 to 20 mm f2.8 rxd lens for Canon RF Mount this is another I think important moment is this year we have finally seen a little bit of cracks in Canon's policy when it comes to the RF Mount the we have” — Dustin Abbott

Price & Value

7 pos · 10 neu · 3 neg

“in good condition the Canon FD SSC is the next cheapest at around $650 for a good copy if you go for the NFD version though that would only be about $300 the Zeiss 21 mm is a pretty rare lens in the contact lineup and therefore pretty expensive at between $1,500 to $2500 for a lens in good condition” — Caleb Brunkow

Weight & Portability

5 pos · 4 neu · 1 neg

“mm f1.8 and recent f1.4 lens both of which let in far more light and can give you far more out of focus backgrounds still this Canon lens seems to have a good reputation so someone out there somewhere might be interested in it let's take a look it weighs about 400 G so it's not a total lightweight…” — Christopher Frost

More detail — 10 additional axes

Distortion

4 pos · 4 neu · 5 neg

“millimeter lenses at the same focal length at a long run past 28 millimeters you're getting low Distortion and sharp images through the frame the only thing is that sometimes the bokeh can look a bit iffley but mostly it looks totally fine and I got this for 229 pounds which is silly cheap that…” — Kai W

Vignetting

4 pos · 6 neu · 6 neg

“I wanted something that's different in focal lengths now think too talking about technical specification now this is an F 2.8 lens which i think is great but you also get vignetting you probably cannot see it from the video that I just filmed like this you probably don't see the vignette but there…” — Dirksón! Photography

Chromatic Aberration

0 pos · 2 neu · 0 neg

Coma

2 pos · 4 neu · 1 neg

Bokeh

11 pos · 6 neu · 4 neg

“a shallow depth of field when needed the lens construction incorporates a floating rear focusing system coupled with an ultrasonic motor USM ensuring Sharp Images across all subject distances at just 14.3 o it's incredibly easy to handle making it a great companion for travel and photojournalism…” — MaxReviews Pro

Color Rendition

4 pos · 1 neu · 3 neg

Filter Thread

2 pos · 3 neu · 1 neg

Dimensions

6 pos · 6 neu · 1 neg

Handling

6 pos · 2 neu · 1 neg

AF Noise

2 pos · 1 neu · 2 neg

Which reviews is this based on? (14)

Every claim above traces to these original reviews. We don't write opinions — we synthesize theirs.

📹 Pro Reviews (14)

Battle of the 20's | Wide Angle Vintage Lenses Caleb Brunkow
Canon EF 20mm f/2.8 USM lens review with samples (Full-frame and APS-C) Christopher Frost
Canon EF 24mm f/2.8 IS USM lens review with samples (Full-frame and APS-C) Christopher Frost
Canon RF 20mm f/1.4 'L' VCM lens review Christopher Frost
The 5 Sharpest 20mm Lenses I Ever Tested Christopher Frost
Canon EF 20mm f2.8 Super Wide Angle Lens Review for 2020 - The forgotten Prime Dirksón! Photography
Tamron 11-20mm F2.8 RXD for Canon RF Review | Better on Canon? Dustin Abbott
Canon FD 20mm f/2.8 Review Jozz Glass
$250 Canon Wide-Angle Zoom L Lens - 20-35mm f/2.8L Kai W
Canon 20mm f/2.8 vs 17-40mm f/4L lens leehaze1
Canon EF 20mm f/2.8 USM Lens Review MaxReviews Pro
Canon EOS R5 - RF 16mm f/2.8 vs EF 20mm f/2.8 Richart Asia
VINTAGE 20MM SHOOTOUT | Zeiss Jena v CanonFD v MIR-20M v Pentax-A v Soligor VintageLensesForVideo
Review | Canon RF 20mm F1.4L VCM – The Ultimate Wide-Angle Lens for Astro & Urban Photography? Wilkinson Cameras

Canon 20mm f2.8