I think I have an atm thread about that somewhere Al. Let me have a peak.
Nope, can't find it and I know the original photos are on another computer. Maybe I'll get a chance to find them later. But you will have to have a fairly short adapter to get the camera chip as close to the PST as you can. Either that or use a Barlow. That got me enough focus initially until I took to my adapter with a dremil.