Canon EF 20-35mm f/3.5-4.5 USM

Canon EF 20-35mm f/3.5-4.5 USMManufacturer's Description:

"Highly portable lens with high optical performance and light weight of 340g. A very practical ultra-wide-angle zoom. The large front lens group minimizes peripheral darkening, and the flare-blocking diaphragm minimizes flare. Also, with lens group 2 being the zoom group, distortion is corrected."
Availability
Discontinued more info No Contribute
Year announced 0 Contribute
General
Lens Mounts
  • Canon EF USM
 Contribute
Focal Type Wide-angle zoom Contribute
Lens
Focal Length more info 20mm - 35mm Contribute
Angle of View more info 54° - 84° Contribute
Max Aperture more info f/3.5 - f/4.5 Contribute
Min Aperture more info f/22 - f/27 Contribute
Filter Size more info 77mm Contribute
35mm equivalent No Data Contribute
Internal focusing more info No Data Contribute
Focusing
Min Focus 34cm Contribute
Stabilised No Contribute
Macro more info No Contribute
Construction
Blades 5 Contribute
Elements 12 Contribute
Groups 11 Contribute
Box Contents
Box Contents more info No Data Contribute
Dimensions
Weight 340g Contribute
Width No Data Contribute
Height 68.9mm Contribute
MTF Data
Effective focal length 20-34mm Contribute
Weighted MTF 20 mm: f3.5 0.72 | f8 0.74 28 mm: f4 0.76 | f8 0.76 35 mm: f4.5 0.77 | f8 0.79 Contribute
Average Weighted MTF 0.76 Contribute
Weighted MTF 10 lp/mm 0.86 Contribute
Weighted MTF 20 lp/mm 0.70 Contribute
Weighted MTF 40 lp/mm 0.46 Contribute
Distortion No Data Contribute
Grade 3.4 Contribute
Photodo MTF Score 3.4 Contribute

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