Features- 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
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