Features- 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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