Canon EF 20mm f2.8 USM
Canon EF 20mm f2.8 USM Specifications and Review
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| Model | Canon EF 20mm f2.8 USM |
| Link to Current Pricing | EF 20mm f2.8 USM |
Production Dates  |
1992 - current |
| Comments | A wide prime from the early days of the EOS system, but it does have a ring USM and FT-M. Decent, if not outstanding optics at a fair price. Has floating elements to improve close focus sharpness. |
| Field of View
(degrees) Horizontal,Vertical, Diagonal Full Frame - 36x24mm APS-C - 22.5x15mm |
Full Frame : H - 84 : V - 61.9 : D - 94.5 APS-C : H - 58.7 : V - 41.1 : D - 68.1 |
| Full Frame FOV equivalent with lens on APS-C body |
32 mm (1.6x multiplier) |
| Full Frame FOV equivalent with lens on APS-H body |
26 mm (1.3x multiplier) |
| Length | 71 mm (2.8 inches) |
| Weight | 405 gm (13.69 oz.) |
| Maximum Diameter | 77 mm (3.03 inches) |
| Lens Mount Material |
Metal |
| Lens Color |
Black |
| Filter Size | 72 mm |
| Filter Rotation |
Filter does not rotate |
| Focusing |
Internal Focusing (Length constant) |
| Focus Range Setting(s) |
No, always uses full focus range |
| AF motor |
USM |
| Distance Scale | Yes, has distance scale |
| Closest Focus | 0.25 m (0.82 ft) |
| Maximum Magnification | 0.14x |
| Canon TC compatibility |
No, Canon TCs can not be used |
| Weathersealing |
Not weathersealed |
| Lens Hood |
EW-75 |
| E-TTL II Support |
Yes |
| Elements/Groups |
11/9 |
| Diaphragm Blades |
5 |
|
Check Current Pricing and Availability at Amazon.com |
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