Sigma 18-250mm F3.5-6.3 DC Macro OS HSM

This lens meets my needs on my Canon DSLRs better than any other lens of this type. I've owned the Canon 18-200IS since it was released and this new Sigma bests it easily: Better IQ, faster AF and lighter. I used an earlier version of this lens, without the "Macro" appellation on a Sony A55. I preferred that Sigma to the Sony 18-250 -- but this one is more capable, lighter and smaller. All such lenses are a compromise. But this is the best of these "compromises" I've found. Problems: No problems

I have to agree with the other 2 reviewers on this lens. The 883-306 model is for Nikon DX DSLRs. It's a new lens from Sigma. I purchased it a few months ago. So far I'm satisfied. Very compact & lightweight, and a good value. Build and operation is very good. Seems to auto-focus at the speed of my Nikon lenses. As for sharpness, it's on par with my other zooms. I have noticed softness in the upper left corner at 250mm, but it's probably acceptable given the purpose & price category of this ...