While collimating the optics of my 5" Newtonian I am not able to view the brackets that hold the primary mirror in. Since the edge of the mirror is where your image is reflected from this is a problem.
Yesterday I decided to rig up a wooden frame behind the existing mirror mount in order to stretch out the optics and bring the focuser closer to the secondary mirror. Other than some minor grinding left, I was able to complete this and just tried out the new configuration.
So far so good. It seems like I'm looking through a slight haze but I think it may be that the hole to see the image off the secondary mirror is a bit off center making the wood of the focuser mount obstruct the view. I'm going to remove the focuser again and grind the hold to make it bigger to create an unobstructed view.
I need to clean the primary mirror again but I suspect I will purchase another since I scratched the surface when I tried to carelessly wipe it with a dry napkin. This put a nasty scratch in the surface and I'm not sure but think it's giving me a slightly washed out view.
Monday, November 12, 2007
Subscribe to:
Post Comments (Atom)



















No comments:
Post a Comment