Rear of lens plate with mounted Tench lens
When a mounting flange is not available, I try, if possible, to mount lenses like this by filing the hole down just enough so the lens screws in all on its own. For a fairly small lens like this that is often quite all that's needed, at least for the purposes of trying it all out. Here, it seems secure enough, and the advantage is that I can remove the lens later without damage. www.flickr.com/photos/richard314159/8082975368/
The inset shows the same, but with the -2 Telek lens attached. www.flickr.com/photos/richard314159/8082980479/
13th October 2012. Olympus E420 with 14-42mm kit lens.