Kerry Pierce Offline Upload & Sell: Off
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FWIW, I obtained a refurbished unit last month, that AFAICT, has none of the issues that some users have complained about.
I don't believe that the outer AF points are going to be as accurate as the inner cross type points, but believe that they should be fairly close.
Jun Zhou, I tested mine by using a large piece of cardboard with several standard AF targets taped to one side. In good lighting, using a tripod and making sure to defocus between test shots, I tested first the center, then the outermost left and then the outermost right AF points. I did this several times with several different WA lenses and compared the test shots. In all cases, my center point was more accurate than either of the outer points. The outer point comparison showed a slight difference between them.
HTH
Kerry
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