IM hoping that someone can give me some real direction with
this question that I have. Im building a scope, the primary
mirror is 4.25 at f/8. I purchased a secondary mirror
with the primary. The secondary mirror size is .50 minor
axis with a .707 major axis. The tube has in inside
diameter of about 5 inches. I wrote to several companies
looking for a good low profile foucser many said that my
secondary was way too small. I get different conflicting
answers on the correct size for a secondary mirror any
answers from my fellow astronomers on this one.
P/S someone mentioned that there is a web site that you
can go to and plug in the size of the mirros and it will
tell you the best fit for the secondary and location
of the focuser anyone heard of this site.
Thanks
Clear skies
Ed
this question that I have. Im building a scope, the primary
mirror is 4.25 at f/8. I purchased a secondary mirror
with the primary. The secondary mirror size is .50 minor
axis with a .707 major axis. The tube has in inside
diameter of about 5 inches. I wrote to several companies
looking for a good low profile foucser many said that my
secondary was way too small. I get different conflicting
answers on the correct size for a secondary mirror any
answers from my fellow astronomers on this one.
P/S someone mentioned that there is a web site that you
can go to and plug in the size of the mirros and it will
tell you the best fit for the secondary and location
of the focuser anyone heard of this site.
Thanks
Clear skies
Ed
