Quote: Eagerly awaiting the adapter,
Dave
I received the nikonF-Diana adapter I bought at Amazon.com
After a little bit of trimming it fits my Pentax PK-A mounts. I used a battery powered Dremel-like tool with a Diamond disk blade for everything described below
There is a little vertical post at the end of each of Diana's flange ears - remove them all (posts NOT ears!).
The outermost edge of the Diana adapter has a small lip underneath - remove it.
I also trimmed the leading edge of each of Diana's flange ear to encourage it to slip under Pentax's ears.
I don't know which of these was critical. But it now mounts by rotating either clockwise or counter clockwise.
It would be a good idea to figure out where to drill a hole in Diana's flange to mate with the Pentax's locking pin & paint a red dot on the Diana adapter to help mount it properly after you've drilled the locking pin hole.
Do not be afraid to do this. It is easy to do and difficult to mess up badly.
Good luck,
Dave
I apologize for no photos, but I didn't document what I was doing as I did it. It would not have been easy to document as everything was small and black.