Quote:
Originally Posted by miketoll
From what I have read over the years any 18-200 (or 18-270 or 300 or whatever) are a huge compromise trading convenience against image quality. If you want quality the consensus is to avoid such lenses.
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I agree too. As has been mentioned earlier, they make good walk-around do-it-all lenses for travel, but image quality suffers.
I used to use a sigma 28-300 when on long walks or days out climbing in the mountains, where the benefits of not having to change lenses and carry a lot of kit were more important. (Also, I worried less about breaking it knocking it against rocks and getting it buried in snow as it was relatively cheap - the 1Ds11 body could take the rough treatment but I didnt want to smash a 70-200 f2.8!) In good light and stopped down, it did ok, but in any sort of challenging conditions you could start to see its limitations.