Build quality is excellent. It's water resistant. Focusing is internal, fast & quiet. The front lens does not rotate when focusing. The manual focusing rubber ring operates perfectly. The image stabilisation feature simply gives you clearer images when using hand held.

Great lens for shooting video on the Canon D5. Image Stabilization a must for video. This lens, at f2.8, is outstanding with a full frame sensor.

Durable; Easily Interchangeable; Fast / accurate auto-focus; Rugged

"Picked up lens just prior to Christmas. With mail in rebate offer and already applied lens sales price, the lens cost was just over $900. After having taken a few hundred photos over the holidays, I've got to say that this is one amazing lens.

With light and compact design is a small lens that gives amazing ease of use. It is extremely comfortable to carry around and use whenever required on the move.

This is such an incredibly sharp, hi quality lens. It has such incredible sharpness and great in low light situations. Incredible quality of photos, great for very close up insect shots. I loved this lens since the first time I used it! I would HIGHLY recommend this lens to anybody.

The lens is even better than I expected. Clarity is excellent. Depth of field is exactly as expected. My very first pictures were hand held and the IS worked very well. Others commented that the AF was loud - I found it to be barely audible.

The lens is even better than I expected; Clarity is excellent; Depth of field is exactly as expected; My very first pictures were hand held and the IS worked very well; Others commented that the AF was loud - I found it to be barely audible

A user friendly lens with astonishing sharpness. Combined with a good ring-flash it opens new micro worlds

Very impressed. I've wanted this lens for a long time. Grays' price was $500 cheaper than retail in Australia. Delivery from Hong Kong took less than a week. Grays give a 12 month replacement/refund warranty. Can't ask for better.

This is among the best lenses from Canon. It features silky smooth focusing and is a beauty of a lens. Sharpness, colour rendition and contrast are also class apart. Canons EF 100 mm lens with the new Hybrid IS system offers a more complete and refined motion compensation to deliver the best results

If you're looking for a macro lens, look no further. The canon 100mm macro F2.8L with IS offers 1:1 image replication. This enables you to snap postage stamp sized objects that will fill your entire frame.

Easy to use; Compact; Build quality