Description
Focal Length & Maximum Aperture
17 – 40mm; 1:4
Lens Construction
12 elements in 9 groups
Diagonal Angle of View
104° – 57° 30′
Focus Adjustment
Inner focusing system with USM
Closest Focusing Distance
0.28m / 0.9 ft.
Zoom System
Rotating type
Filter Size
77mm
Max. Diameter x Length, Weight
3.3 x 3.8, 1.1 lb. / 83.5 x 96.8mm, 500g
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