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Sigma 17-50mm F2.8 EX DC OS HSM

Review Date: Jun 21, 2011 Recommend? yes | Price paid: $669.00 | Rating: 10 

Pros: VERY sharp lens that is versatile. f/2.8 with image stabilization is great. The FLD glass is new and wonderful leaving the CA low. By far one of the better lenses out there in its class.
No full time manual focus. The focus ring is narrow and very sensitive and it turns when auto-focusing and your hand (at least my hand) gets in the way. The zoom seems backwards which isn't a big deal but you turn the wrong way without thinking at first.

Plain and simple this lens is a contender! It's commonly compared to the Tamron 17-50mm and Canon 17-55mm. The other lens it is sometimes compared to is the Canon 17-40mm L. If you're shooting on a full frame sensor then you're only real choice here is the L lens...And it's a great lens. I don't own it but I've shot with it before.

However for those with cropped sensors...I'm telling ya, get this lens. If you're on a tight budget, get the Tamron. However, I'd probably just simply stay away from the Canon 17-55mm because I think it's overpriced. If it was an L series with image stabilization...Well, then maybe. Maybe it'd also cost more.

There are a TON of reviews on this lens, so read here and Google it up. I won't repeat what others have said.

However one thing I did not know when buying this lens.. This lens has the new Sigma finish. It does not have that "crinkle" finish. You know that kinda visually textured/sandy matte dull finish (which was pretty smooth to the touch but not glossy smooth). I actually liked the old finish...But many people did not because it could peel off with a lot of wear and tear. I never had that problem, but it's worth noting because you actually don't read about it much. I know it has nothing to do with image quality, but don't be surprised when you pull this EX lens out of the bag for the first time and it has a smooth plastic finish.