Lens system
| Closest focusing distance |
0.25 m |
| Number of diaphragm blades |
5 |
| Diagonal angle of view (max) |
94 ° |
| Maximum aperture number |
22 |
| Fixed focal length |
20 mm |
Performance
| AF actuator |
USM |
| Auto focus |
Y |
Weight & dimensions
| Diameter |
77.5 mm |
| Filter size |
72 mm |
EF 20mm f/2.8 USM
This lens is an EF 20mm 2.8 USM.
- Lens construction: 11 elements in 9 grps
- Diagonal angle of view: 94°
- Focus adjustment: Rear focusing system with USM
- Closest focusing distance: 0.25m / 0.8ft
- Ultra-wide-angle lens for serious applications.
- Easy to hold and carry at 405 grams.
Floating rear focusing system. Sharp images are obtained at all subject distances
Ultra-wide-angle lens for serious applications. Easy to hold and carry at 405g. Floating rear focusing system. Sharp images are obtained at all subject distances.