The Canon EF 100mm f2.8 Macro USM Lens is an 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. The optional Tripod Mount Ring (B) B (with adapter) enables the lens to be rotated for vertical or horizontal framing.

• Long working distance of 5.9in at 1x
• 3-group floating system
• Ring USM for silent and high-speed AF
• Full-time manual focusing