|
Does your focusser have a lock knob? Without being there I have no idea what it is, but most times this turns out to be something simple that is staring at you in the face. Is there a mirror lock that stops the primary from moving forward or back? Are there any transport lock screws in the rear cell of the scope. I'm asking because I am not familiar with your particular scope, but I know other scopes can have these things.
Try looking for something simple and obvious, so obvious is just seems stoopid!
When the moon comes out, grab a white piece of paper and hold it behind the focus tube. Take the diagonal mirror and the eyepiece out. See if you can get the moon to project onto the paper by adjusting the distance of the paper from the focuser. That should tell you if your scope is ok.
Failing that, there might be something about the relationship between your eyepieces and diagonal. Are they new? Did they come with the scope? Can you take it back to a shop?
keep trying mate, you will nut it out. If you were in Canberra, I would say, bring it over to my place and I will have a go at helping you solve the mystery.
Good luck mate.
Baz.
|