This lens is excellent The build quality and picture quality are both superb. It is basically the APS-C equivalent of 70-200 on full frame (just a touch longer). If you are looking for a lens of this focal length range, I doubt if you could beat this.

Great Picture Quality

I really like this lens. It is my first "professional" grade lens and I am VERY impressed. The sharpness of my photos is a magnitude above that of the kit lens for my Canon T3i. Photos taken with this lens are tack sharp! I read some reviews stating that at F2.8 there is softness at the edges.

Much Cheaper Than L Glass; Quick Focus; Very sharp

Heavy; Large; Not For Full Frame Camera

I really like this lens. It is my first "professional" grade lens and I am VERY impressed. The sharpness of my photos is a magnitude above that of the kit lens for my Canon T3i. Photos taken with this lens are tack sharp! I read some reviews stating that at F2.8 there is softness at the edges.

Much Cheaper Than L Glass; Quick Focus; Very sharp

Heavy; Large; Not For Full Frame Camera

Quick focus, sharp photos, great lens for mid range. Speedy delivery.

Great zoom lens with large aperture! Being able to get telephoto with f/2.8 is what I needed and the lens produces great pictures on my Nikon D7000. Build is very solid, zoom and focus rings are smooth. Only issue is its a bit heavy, but what do you expect from lens with this capability.

Consistent Output; Durable; Fast / accurate auto-focus; Nice Bokeh; Strong Construction

Heavy

Gary Wolstenholme reviews the bright telephoto zoom from Sigma, the Sigma 50-150mm f/2.8 EX DC APO OS HSM lens.

Excellent sharpness in the centre throughout the zoom range; Good build quality; Constant f/2.8 maximum aperture; Effective optical stabilisation; Good value for money

Performance towards the edges at maximum aperture could be improved; No weather sealing

Was in debate to go for either the Tamron 70 200 or this Sigma. With the aim of replicating full frame reach whilst saving many pounds, I am not disappointed, it offers a very practical focal range. This lens is very sharp with excellent colour contrast.

This telephoto zoom lens for use with APS-C format cameras offers a 3x zoom range equivalent to a 75-225mm lens used on a 35mm camera, a fast constant f/2.8 maximum aperture, silent autofocus and optical stabilisation.

I purchased this lens to complement my Tokina 12-24mm f/4 and Sigma 17-50mm f/2.8 OS for my Nikon D7100. The 50-150mm is super sharp even at f/2.8 and all focal lengths. Focus is fast and bokeh is very nice - Very pleased!

I would like to complete a full Sigma 50-150mm f/2.8 EX DC OS HSM Lens review in the future.