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08-30-2013, 11:30 AM   #31
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Not the best photo for looking at the screw close up. There are a few more images here and with different adapter types.

09-03-2013, 01:05 PM   #32
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Update to anyone who's interested: the adapter has a small piece of the inside thread chipped off which apparently is enough to make attaching lenses to it almost impossible. I just bought a 2€ chinese non-infinity focusable adapter to test it out and it screws on perfectly. Another genuine K-M42 adapter gone to the history books I guess...
09-03-2013, 02:54 PM   #33
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Good and bad news I suppose. You may be able to repair the adapter with a 1mm thread file. A metal working or automotive repair shop might do it for you.

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