I was struggling with keeping my HOC 12" mirror in collimation when I found out that the mirror cell was not held firm enough with the provided springs. Only by tighening the screws well down would they not float. Unfortunately then my 1.5X Barlow would not reach focus. So I found some springs at Ace Hardware and meshed them together with the originals so that the springs would provide enough pressure on the screws to keep them from floating. Has anyone else had this problem.
I Yam What I Yam!
