jeffp Offline Upload & Sell: Off
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I own or have owned the Canon 18-200mm, Canon 18-135mm, Sigma 18-125mm, Sigma 18-200mm, Tamron 18-200mm, Tamron 18-250mm, and the Tamron 18-270mm. The best optically is the Canon. It is the one that I use the most and is sharp and well made. Though I have not tried the Sigma 18-200mm OS, I could not find a non OS Sigma that worked well for me. The Tamrons are all quite good, but not as good as either Canon. I found that the 18-135mm IS is nearly as good as the Canon 18-200mm but I already owned the 18-200mm and needed the longer reach. We also have an 18-55mm IS and a 55-250mm IS. The build and optics of the 55-250mm are similar to my sample of the 18-200mm IS. I am quite happy with the Canon 18-200mm as a lens to have on my 7D if I don't need my 135mm F/2, Tamron 17-50mm, Canon 50mm F/1.4, Canon 100mm Macro, etc. Of all my lenses, the Canon 18-200mm is the most used with results that work very well.
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