This lens rocks: It is fast, sharp even at f/2.0 and focuses quietly. I do not see any distortion on pictures taken with this lens. Contrast is also very good, while light fall-off is barely noticeable. The bokeh produced by this gem is a joy to see.

Image quality; size; price

It is not weather sealed so some dust may get into the lens

This compact medium telephoto lens sports a fast f/2 aperture, which will make this lens ideal for low light photography or creative use of shallow depth of field. It sports a silent ultrasonic focusing motor, internal focusing and costs around ￡380.

Good build quality; Very good sharpness; Low CA levels; Fast AF

Quite prone to flare; No lens hood supplied

the 100mm f2 is a great lens, and pocket and wallet friendly

quick af; large apperture; good for sports and portraits

none really; slight purple fringing at f2

I will not say anything that is already known about this lens. The Canon EF 100mm f/2 USM Lens is a very sharp, the 100 f/2 to be sharp at f/2, corner sharpness is good as well. The AF motor is silent and is super-fast and quiet. Very good bokeh!

Beautiful, un-assuming compact lens, great where flash is not allowed, and for indoor/shaded sports. Fantastic colour rendition, razor sharp for portraits - is it possible to be too sharp

Lightweight; Quick Focus; Sharp Focus

I bought this lens 4 months ago. Its really sharp wide open, has no noticeable Vignetting on my 50d. Its quick to focus and the bokeh is awesome. If you compare it to the 50mm f1.8 or 1.4 this lens is waay sharper wide open. Colours are really nice too.

Canon Macro EF 100 L. fantasic medium tele lens, purpose built for macro, great as a medium portrait lens. This is one of the superior lenes in this class.

"nice works only, thanks!"

I've only used this for weddings so far, but LOVE it! It's great for low light ceremonies, and sharp images. This lens exceeded my expectations.

The optical construction is made of 8 elements in 6 groups without any special elements (which aren't really common in this lens class anyway). The lens features 8 aperture blades. The filter size is 58mm.