I had to have a part made last year by Richard Ritter. He had to make it from scratch. It was a knurled knob with an offset center post that went into the camera body. He said it was a real pain to make and charged me $50 for a brass knob! So, don't break anything<g>.

His e-mail is:

rrlg4mat@sover.net

That piece of info will cost you $23.42.

-Mike