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Canon EF 20mm f/2.8 USM Lens Review

The Canon EF 20mm f/2.8 USM is an ultra wide angle prime lens for the EF (full frame) mount. It can also be used on APS-C bodies such as the Canon Rebel series and the XX-D bodies such as the 80D, 70D and will also mount on the 7D bodies as well. On these APS-C cameras the field of view will be similar to a 36mm lens on a full frame body.


  • Canon EF 20mm f/2.8 USM - $540

*Pricing from Manufacturer's website - Current selling price may be different.

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Overall User Rating

4.29 out of 5

based on 224 user reviews online.

: 54% (121)
: 32% (72)
: 6% (13)
: 5% (12)
: 3% (6)



Focal Length 20 mm
Max Aperture f/2.8
Minimum Aperture f/22
Minimum Focus distance 9.84 inches
Maximum Magnification 0.14x
Number of Elements 11
Number of Groups 9
Aperture Blade Design Not Specified
Number of Aperture Blades 6
Filter Size 72 mm
Diameter 3.05 in.
Length 2.78 in.
Weight 0.89 lbs.
Lens Mount Construction Metal
Tripod Collar None
Weather Sealed No
Distance Scale Yes - With Hyper Focal Markings
Image Stabilization No
Lens Shade Optional

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