Canon EF 100mm f/2.8 Macro USM lens

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.

Specifications
Main Unit Spec

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