TV 76 Back Focus

I picked up a Williams Optics 2" Erecting Prism for birding
and digiscoping with my TV 76 but I am finding that my
Scope Tronix eyepiece are about 1/4" or less short of comming to focus at infinity. They do make it at close range. (100 yards or so)
Anyone have any ideas how I can gain an 1/8 to a 1/4 of an inch of back focus without a barlow.
The Compression Ring on the end of the focuser is pretty long. It would be nice if there was a shorter one available. It looks like you could gain a 1/2" or so with
a different one.
Thanks,
Bryan

Bryan,

If you're using 1.25" eyepieces in the 2" diagonal, you might try a 2"-1.25" adapter that has a deeper flange. I have one of Joe Cortolano's adapters that has a 1/2" deep flange beyond the end of the diagonal that might add just enough to bring you into focus. It's very nice, with compression rings and is threaded for filters on the barrel end. I think I paid $25 for it. I think Joe is an Astromart sponsor.

I'd be interested to hear what you think of the WO erecting diagonal after you get it focus.

Jim