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Title: Slow focus
Review: I am a professional wedding photographer and I tried this lens on my canon 7D at my daughter's Halloween party at school. I'm glad I didn't bring it to a wedding off the bat. The room (as most school rooms are) is well lit from windows and the florescents were on - the lens couldn't pick up on the dark costumes to grab fast enough. It hunted a lot and I lost some shots. At the widest, there was A LOT of blur around the edges. Not a crisp shot. I returned it today (after receiving it the day before yesterday). I do have another Tamron zoom that is slow to focus, but this one was much slower in lower light - would not have worked at a wedding ceremony (especially a church) nor a reception.
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