[QUOTE=does anyone know of a source for just the screw on nosepiece for the diagonal to convert the one I have (Which is in perfect condition) to a refractor type?[/QUOTE]
You might have to butcher an old 2" EP or something to get the bit you need. I would think it has the same thread and sleeve length. I assume you want to slip the diagonal it into the focuser, yeah?
Have you given your Bintel focuser a good going over since you bought it? When I got mine, & before I fitted it to my C8, I stripped it down and gave it a birthday. It didn't need much, but just the new grease and a firm up made it operate a lot smoother. I have the procedure for doing it if you want it. Can't remember if I got it of IIS or somewhere else. Let me know if you want it & I can email it to you. It's to big to attach here.
I'm pretty happy with my Bintel Crayford.
http://www.bintel.com.au/ImageResize...=170&width=170
Stew.