[APML]: ST4 and 4-inch Bausch & Lomb SCT

[charles@jon.cjfny.org]

A few months ago I asked whether anyone has used the ST4 with a 4-inch
B&L SCT. I remember people warning me about mirror shift. But I can't
remember whether there were any successful users. If there were, what
should I do to improve the system? I can't afford to buy a new guide
scope right now. I am concerned because the scope does slip easily out
of focus. Is this fatal for the ST4?

Thanks,
Charles