12 Aug
2003
12 Aug
'03
8:53 p.m.
--- Paul Witte <paul@linkrealms.com> wrote:
It seems hard to believe that slight thermal variations would make enough of a difference as to affect collimation, am I wrong on this?
That's a new one on me. The focal plane can shift with temperature changes, but that's what focusers were invented for. I think what is inferred is differential expansion of structural components; that could cause miscollimation. Improper annealing might also be a seed for this condition, but we all perfect mirrors, right? ;) Chuck __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com