I purchase this Sigma 70-200mm lens as a replacement for my Canon 70-200mm lens without stabilize capabilities. WOW, what a amazing lens, on my first day of purchasing it I went out to back country National park area,I guess I can call it my lucky lens.

Lens is a little heavy, but better that cheap, light weight plastic. Lens is used mostly for shooting indoor concerts & sporting events and seems to fast focus very well.

Consistent Output; Durable; Easily Interchangeable; Fast / accurate auto-focus; Rugged; Strong Construction

Heavy

High sharpness at low price. The same type of non-third party lenses (official brands) costs twice more, but the results are very, very similar... Recommended 100%!

After reading what feels like dozens of reviews - all complimentary, I decided to take the plunge and get one of these - I do a lot of indoor fast action and kids photos, needed something fast and decent zoom. Unbelievably sharp photos, better than my prime lens...

Easy to use; Build quality

This lens is good as Nikon 70-200

Perfect

Sharp and Fast

This lens will please the most discriminating photo enthusiast and pros alike. This lens is just as sharp as the canon lens. The constant F2.8 is a big plus too. I can not say one bad thing about this lens it's that good. Buy one you will love it, and love the $$ you saved.

Quality feel; fast Auto focus and HSM motor; Tripod collar; case and Sigma warrantee

None noted

Great lens. Not as fast as Nikon's but the price compensates for that.

The Sigma 70-200mm f/2.8 DG OS HSM Sports lens is bigger and heavier than all of its main rivals, but we can forgive that because of the compelling mix of fantastic sharpness and image quality, great build quality, and outstanding feature set and performance.

Sigma have a long history of producing decent lenses in this range. In this review, Gary Wolstenholme takes a look at their latest optically stabilised version.

Excellent centre sharpness at most focal lengths and apertures; Very low CA levels; Fast AF; Optical Stabiliser; Decent build quality

Lacklustre resolution performance at 70mm and f/2.8

A lens with a 70-200mm focal length range, a wide, fixed max f/2.8 aperture and optical stabilization is destined to become a critical part of most people's lens kit. With this lens model now offered by many manufacturers, "Which one is right for you?