Specifications for the EF20-35mm f/3.5-4.5 USM
| Marketed |
March 1993 |
| Lens Construction (group) |
11 |
| Lens Construction (element) |
12 |
| No. of Diaphragm Blades |
5 |
| Minimum Aperture |
22-27 |
| Closest Focusing Distance (m) |
0.34 |
| Maximum Magnifcation (x) |
0.13 |
| Filter Diameter (mm) |
77 |
| Maximum Diameter x Length (mm) |
83.5 x 68.9 |
| Weight (g) |
340 |
Highly portable lens with high optical performance and light weight of 340 g. A very practical ultra-wide-angle zoom. The large front lens group minimizes periperal darkening, and the flare-blocking diaphragm minimizes flare. Also, with lens group 2 being the zoom group, distortion is corrected.
