K20D+DA*50-135 focus ring problem.
Less than a month into my camera/lens ownership, my camera developed an odd problem(intermittent). Here's what happens:
1) With shutter button half pressed, focusing motor rotates focusing barrel all the way to the left(closeup) and refuses to refocus properly.
2) If I release the shutter button and try to rotate focusing barrel by hand, it won't budge.
3) switching to MF on the lens does not help any
4) switching camera off and on does not help either.
5) moving focusing switch on the body to manual does and back to AF, does not work
6) the ONLY thing that seems to work is switching body switch to MF, rotating focus ring all the way to the right(infinity) and switch back to AF.
7) I've tried another lens(FA31) and it does not exhibit this problem.
What could this be? How can I correct it? HELP!!!
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