Sigma 24-70 ART OS HSM REVIEW
But what about that Tamron SP 24-70mm f/2.8 Di VC USD G2? It offers everything the sigma does and is $1199 (same price but you do not get the Tamron TAP USB dock). I have not shot with the Tamron 24-70 yet, but based on my research the two are extremely similar - I think the Sigma offers slightly better bokeh and better quality control - you are more likely to get a sharp copy - this is something that Tamron has struggled with in the past on some of their lenses but the Tamron is lighter and some claim offers better VC.
So while I can recommend the Sigma you should think long and hard - the Tamron may be just as good for you and a little lighter in your bag. Canon owners, if you don't care about image stabilization, the Canon 24-70 f/2.8 IS II is currently just $400 more, noticeably lighter and a bit sharper. The weight and sharpness of the Canon is hard to beat.
Download RAWS to compare Sigma 24-70 OS HSM ART vs Canon 24-70 f/2.8 USM II
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