Help! Dead DA* 50-135 SDM or dead K10D???

Started Jan 20, 2008 | Discussions thread
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Sophie Wilson
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Help! Dead DA* 50-135 SDM or dead K10D???
Jan 20, 2008

Well, its production week of Bottisham Panto Sleeping Beauty and John is using the DA* 50-135 for the first time (I'm in it, so he has to do the photography). We've come home from the tech and he complains he had to use manual focus on the lens. At home, I've tried it and it doesn't focus when it should - just goes "clunk" quietly, not moving the focus at all. Quick shift focus or manual focus both can move it, but not the AF. So we've taken the lens off and on a few times, rubbed the mount and lens back cleaner (some dirt did come off - oil, I guess) and it still doesn't go. Another try and cleaning all the contacts and now the lens runs from the in camera focus motor with no attempt at using SDM! (Which at least means John can use it at the dress rehearsal tomorrow )

What's wrong with it all? How did it "downgrade" itself to non-SDM? Is it the DA* or the K10D that's gone wrong?

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Sophie with a slight tinge of panic

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