Overview The Canon 100mm f/2.8 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. Highlights Macro with Extended Reach Ring USM Auto Focus with Manual Override Super Spectra Coating In The Box Canon EF 100mm f/2.8 Macro USM Front Lens Cap (E-58U) Rear Lens Cap EF Instruction Manual (CD-ROM) Specifications Focal Length 100mm Maximum Aperture 1:2.8 Lens Construction 12 elements in 8 groups Minimum Aperture f/32 No. of Diaphragm Blades 8 Maximum Magnification (X) 1x AF Actuator Ring USM Closest Focusing Distance 0.31m Filter Size 58mm Max. Diameter x Length 118.6 x 78.6mm Weight 580g
