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Pentax DA 17-70 Focus-shift?
Jul 19, 2009
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Hi,
just bought a Pentax DA 17-70mm/f4 SDM.
Got some trouble getting the focus at 70mm right: at f4 it´s a little frontfocusing, at f5.6 it´s point of focus is definatly shifting behind, making it a little backfocusing...
Anyone else noticing this? Is the 17-70 know for focus shift or is something wrong with my lens?
Thanks.
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