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Tamron SP AF 300/2,8 LD (IF)


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

Read More at Tamron's site


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