Canon 100mm F2.8 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. The optional Tripod Mount Ring (B) B (with adapter) enables the Canon 100mm F2.8 lens to be rotated for vertical or horizontal framing.

For more details Click Here