Forum: Pentax SLR Lens Discussion
12-29-2008, 11:14 PM
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The only SDM lens i have is the DA 300 and it works fine in a variety of conditons. I have noticed in dimmer indoor situations (ok, it was raining :-)), the SDM may take a coupla tries to hit the focus correctly. I've also noticed that with a TC on outdoors, the lens also starts missing the focus in lower light situations. My Tamron 18-250 is about the same speed at the wider end, and the SDM seems better than its AF.
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