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

Fantastic!
If you are into photography and want to show detail then this is the lens for you. This lens is the best for showing great details in your photos. I photograph nature alot and this lens can even pick up the little white flys. If you want things that small this is the lens. When I photograph people it is awesome with closeup shots in showing how smooth or rough the face and hair are. I think this lens is the best lens Canon could have come out with.

Great Lens
This lens is amazing! Astonishing sharp and with a very nice bokeh.
Highly recommended!!!

I love this lens!!!
This was the first lens that I purchased for my XTi and I couldn't be happier with my choice. I enjoy macro, but I also wanted something that would be equally good for portraits. I have been able to get really captivating candid shots of people with this lens and extreme close-ups of whatever I wish. It is ancredibly sharp and fast, and I believe it is everything ou would want in a lens. This is a MUST buy even if you have to save up for it. You will not be disappointed.