Canon EF 20mm F2.8 USM
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16 years ago
Canon EF 20 mm f/2.8 USM
In the era of APS-C sensors a 20 mm instrument became an equivalent of a classic 35 mm lens. On the one hand a shorter focal length might suggest more problems with the image quality at the frame edge, especially when it comes to distortion and vignetting.
Pros:
- solid casing
- excellent resolution in the frame centre
- very well corrected astigmatism
- decently controlled coma
- silent
- quick and accurate autofocus
Cons:
- average image quality at the frame edge
- a bit too high chromatic aberration
- huge vignetting even on an APS-C sensor
- weak work against bright light
13 years ago
The Canon 20mm f/2.8 USM lens often catches a bad rap for being soft in the corners, having horrendous vignetting wide open, and being plagued with an overall lack of contrast. I'm here to tell you why absolutely none of that matters.
7 years ago
Canon EF 20mm f/2.8 USM - Review / Lab Test Report
The optical construction is made of 11 elements in 9 groups without any special glass. The aperture mechanism features 5 blades. With a min. focus distance of 0.25m the max. object magnification is about 1:7. The lens feature a floating system for close focus correction.
4.3
from 33 reviews
5
50.0%
4
33.0%
3
8.0%
2
8.0%
1
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