Aimed to satisfy the most demanding professionals and advanced amateur photographers, its enhanced optical design has multiple moving lens groups and features that adjust and compensate for a variety of conditions. Ultrasonic Motor (USM) technology and an internal focusing system enable silent, high speed autofocusing. A wide rubberized focusing ring and manual focusing capability in the autofocus mode provides maximum flexibility and ease of use.
Ultra-wide zoom lens with a high zoom ratio
Ultra-wide zoom lens with a high zoom ratio. By having multiple lens groups move during zooming, the lens could be made compact and lightweight. The aspherical element suppresses distortion. High contrast is maintained at all focal lengths and sharp images are obtained. Key optical features include a replica aspherical lens element that minimizes distortion and a flare-cutting diaphragm that helps the lens maintain contrast in tough lighting conditions.
Specifications
| Focal Length & Maximum Aperture | 24-85mm 1:3.5-4.5 |
| Lens Construction | 15 elements in 12 groups |
| Diagonal Angle of View | 84° - 28° 30` |
| Focus Adjustment | Inner focusing system with USM |
| Closest Focusing Distance | 0.5m / 1.6 ft. |
| Zoom System | Rotating Type |
| Filter Size | 67mm |
| Max. Diameter x Length, Weight | 2.9` x 2.7`, 13.4 oz. / 73mm x 69.5mm, 380g |
