Autofocus lens for macro photography up to life-size (1x) magnification. Inner focusing affords a long working distance of 5.9in. (149mm) at 1x. A 3-group floating system results in excellent delineation at all focusing distances. Ring USM for silent and high-speed AF, and full-time manual focusing also provided. *Entirely new optically, with a three-group floating system for exceptional close-up performance.
*The first lens in its class to feature innner focusing. The lens length never changes, even at life size!
*A secondary diaphragm blocks stray light at f/2.8, increasing contrast when shooting wide-open.
*Ultrasonic Motor provides outstanding AF speed at all focusing distances.
*Wide manual focusing ring with smooth action, and full-time manual focus even in AF mode.
Specifications Focal Length & Maximum Aperture
| 100mm 1:2.8
| Lens Construction
| 12 elements in 8 groups
| Diagonal Angle of View
| 24°
| Focus Adjustment
| Inner focusing system with USM
| Closest Focusing Distance
| 0.31m / 1 ft. (film plane to subject)
| Filter Size
| 58mm
| Max. Diameter x Length, Weight
| 3.1" x 4.7", 21.1 oz. / 79.0 x 119.0mm, 600g |
Sampe Image 
Sumber data: www.usa.canon.com |
