Canon EF 100mm f/2.8 Macro USM Lens

A totally revised version of the popular 100mm f/2.8 macro lens. Focusing over the full range from infinity down to life size (1:1 reproduction ratio), this lens will impress any serious photographer with its combination of versatility, image quality and superb handling. A high-performance ring type Ultrasonic Motor provides fast and silent AF throughout its focus range, and even more significantly, allows full-time manual focusing - permitting the close-up or macro shooter to instantly override the AF whenever necessary.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. Macro with extended reach The EF 100mm F/2.8 Macro USM is a medium telephoto lens with a macro feature providing a 1.0x magnification. With eight aperture blades, creative background blur is possible to help make the subject stand out. The lens features a focusing limiter switch which limits the focus range to improve AF speed. Ring USM auto focus with manual override Canon's ring USM auto focus system employs ultrasonic frequency vibrations for fast, accurate and virtually silent operation. Full-time manual focus override, via a large ring that does not rotate during auto focus, allows photographers to fine-tune focusing instantly. Super Spectra coating Super Spectra coatings help ensure accurate color balance and high contrast, and suppress flare and ghosting by absorbing light that might be reflected off internal lens elements and image sensor.