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Sigma 18-200mm f3.5-6.3 DC OS

18-200OS
Review Date: Nov 27, 2008 Recommend? no | Price paid: $699.00 | Rating: 4 

 
Pros: Good build, solid feel, includes hood
Cons:
Slow & noisy AF, could be sharper, don't like the way the finish picks up dust.

I had a poor experience with my first copy which caused me to reevaluate my choice. Was looking for an all in one solution to replace several lenses for a longer vacation. A sales rep recommended this one.

First copy had focus issues which looked like hand shake at times, finally determined the OC was the problem. After taking about 100 lousy shots and 3 good ones, I finally put the camera on a tri-pod with live view on and I notice the OC was wondering around like a drunken sailor. It would just wonder quite erratically for about 10 seconds before stopping. Got much better shots with OC off. Took the lens back to shop and we got a copy which did not have this problem (every one is allowed a bad copy I guess).

However, even though the good copy performed much more adequately I still wished it was sharper, so I tried the slightly more expensive brand new Canon EF-S 18-200mm F3.5-5.6 IS and the Canon is much shaper, definitely worth the extra $ at this price level I felt.

With this Sigma I was worried I would not be able to safely put down the kit lens and a few others I had covering off the 18-200 range the Sigma would cover. The Sigma, even the good copy felt like too much of a compromise even compared with lower end glass (with less range of course). I have not been able to fully evaluate the Canon 18-200 lens but I can say it is much shaper and easily as sharp as the kit lens. I felt better counting on it for an all in one leaving the other lenses at home.

One positive, for some strange reason Canon’s Digital Photo Professional fully supported all lens abortion correction functions for this Sigma, at least my copy did. Strange but true.