22 Apr
2008
22 Apr
'08
12:03 p.m.
So, Dave, are you watching the reflection in the primary? On Tue, Apr 22, 2008 at 9:26 AM, Dunn, Dave <David.Dunn@supervalu.com> wrote:
I use one all the time on my closed tube Dobs. I can see the collimator in the focuser from the front of the tube. My Glatter collimator is about 4 inches long so it comes all the way to the end of the focus tube.