Autofocus lens for macro photography up to life-size (1x) magnification. Inner focusing affords a long working distance of 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.
- 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 / 1ft. (film plane to subject) Filter Size: 58mm.
- Max. Diameter x Length, Weight: 79.0 x 119.0mm, 600g