| Lens mount: Canon EFMinolta AFNikon AF Diameter: 120 mm Length: 215 mm Weight: 2800 g Filter mount: 112 Lenses/Groups: 10/7 Diaphragm blades: 9 Max Aperture: 2,8 Min Aperture: 32 Close Focus: 2,5 m Misc: AF, Single, Built-in motor (Electr) Comments: |  | |
Photodo test result: 2,8 Effective focal length: 290 Weighted MTF for 300 mm: f2,8 0,62, f4 0,67, f8 0,73 Average Weighted MTF: 0,71 Grade: 2,8 Weighted MTF 10 lp/mm: 0,82 Weighted MTF 20 lp/mm: 0,65 Weighted MTF 40 lp/mm: 0,39 Distortion: % - %  Understanding the MTF graphs, numbers and grades | ||
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