Technical Specifications
Main Unit Spec
Focal Length & Maximum Aperture
100-400mm 1:4.5-5.6
Lens Construction
21 elements in 16 groups
Diagonal Angle of View
24°-6°10
Focus Adjustment
Inner focus system / USM
Closest Focusing Distance
3.2 ft. / 0.98m
Zoom System
Rotation Type
Filter Size
77mm
Max. Diameter x Length, Weight
Approx: 3.7" x 7.6" / 94 x 193mm
Approx. 3.46 lbs./1570g (without tripod mount)
Approx. 3.62 lbs./1640g (with tripod mount)