Product Description

This telephoto macro lens is capable of focusing to life-size (1X) without attachments. Although it replaces the EF 100mm f/2.8 macro lens, it is a completely new design. It incorporates a ring-type USM giving quiet, high-speed autofocus. The full-time mechanical manual focus gives very smooth manual focusing. For the first time in a 1X focusing telephoto macro lens, inner focusing is used.The lens length remains constant and a long working distance of 149mm makes worrying about getting too close to the subject unnecessary. Also, during focusing the front ring does not rotate making use of front-mounting accessories like macro ring lites simple and effective. "Three-group floating" focusing construction uses three independently moving groups, which holds focusing-related changes of aberrations to a minimum giving excellent image quality all the way from infinity to life size.

Product Details

• Brand: Canon
• Model: 4657A006
• Dimensions: 2.13" h x 2.13" w x 2.99" l, 4.00 pounds

Features

• 100mm macro USM lens with f/2.8 maximum aperture for Canon SLR cameras
• Secondary diaphragm blocks stray light at f/2.8 for increased contrast
• Ultra-sonic monitor provides outstanding autofocusing speed at all distances
• 3-group floating system for exceptional close-up performance; full-time manual focus
• Measures 3.1 inches in diameter and 4.7 inches long; weighs 21.1 ounces; 1-year warranty

Amazon.com Product Description
Bring small things into full-sized view with the Canon EF 100mm macro USM lens. Macro lenses can uncover detail that would be impossible to detect by the eye and give new perspective to extremely minute subjects such as insects or the petals of a small flower, and this lens is no exception. The lens offers such features as a three-group floating system for exceptional close-up performance; a secondary diaphragm that blocks stray light at f/2.8, which increases contrast when shooting wide open; a ultra-sonic monitor (USM) that provides outstanding autofocusing speed at all focusing distances; a wide manual focusing ring with smooth action; and full-time manual focus even in AF mode. The first lens in its class to feature inner focusing, the lens carries a one-year warranty.

• Focal length: 100mm
• Maximum aperture: 1:2.8
• Lens construction: 12 elements in 8 groups
• Diagonal angle of view: 24 degrees
• Focus adjustment: Inner focusing system with USM
• Closest focusing distance: 1 foot (film plane to subject)
• Filter size: 58mm
• Dimensions: 3.1 inches in diameter, 4.7 inches long
• Weight: 21.1 ounces

Customer Reviews

Satisfied
Good product, Upto my expectation, difficult to find by keywords but atlast found it, fits to my canon camera and wow on result. thanks for this deal

Amazing Lens.
Can't say anything bad besides the slow focusing. But this is sharp. Awesome macro and tele capabilities.

Very Nice Macro
Bought this about 60 days ago and it's been my primary lens since. This is by far the sharpest lens we have and with the biggest aperture. Just yesterday was at our daughter's dance rehearsal and no flashes were allowed. I tried to use the 28-135 telephoto that came with the camera but it's was just way too dark. Moved back a few rows and slapped on this baby and everything became so much brighter and I got some really good action shots at 1600 ISO. By the way, the Canon 40D is so good that 1600 ISO shots are useable.

As to the macro function, it's great. For small insects you will need a monopod, a steady hand, and manual focus.