focus mystery - lens or camera?
Hi. It meens to me that my camera, Pentax k20d has some back focus issues. I am quite sure that it cant be the lenses, Sigma 10-20, sigma 100-300, tamron 17-50 and pentax f70-210.
The strange thing is, that with any of these lenses at the maximum focal length the focus seems to be at the focus point or slightly behind (camera set zero at focus correction setup). But when I put any of these lenses to the minimum focal length, the focus is way behind the target point, where I am aiming at. The problem seems to be worst with the shorter focal lengt lenses. The focus correction setup at k20d does not seem to be able to correct the problem even set to the maximum correction level.
So the question is - is the problem in my Camera? At the least according to the evidence it is so. Can anybody confirm? I still have warranty on my camera, so I hope its the camera, not all my lenses!
thanks
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