Focal Length & Maximum Aperture | 400mm 1:2.8 |
Lens Construction | 17 elements in 13 groups |
Diagonal Angle of View | 6° 10' |
Focus Adjustment | Inner focusing system with USM |
Closest Focusing Distance | 3m / 9.8 ft. |
Filter Size | 52mm Drop-In |
Max. Diameter x Length, Weight | 6.4" x 13.7", 11.8 lbs. / 163.0 x 349.0mm, 5370g |
Sabtu, 19 Februari 2011
Specification EF 400mm f/2.8L IS USM
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