Re: ATM secondary position

["Bob May" <bobmay@nethere.com>]

The movement of the secondary towards or away from the focuser will change
the appearance of the primary and the end of the tube.  You should see the
end of the tube (unless you have a large diameter tube relative to what is
necessary - make a ring to fit on the end of the tube if this is true as an
alignment guide) and when the secondary is the right distance, the primary
and the end of the tube should be concentric and appear to be in the center
of the secondary mirror.
Bob May
My new web space address is http://webu.wigloo.com/bobmay/ or
http://nav.to/bobmay
and my new email address is bobmay@nethere.com
Bob May