Quote:
Originally Posted by shane.mcneil
Hi
I recently bought a GSO 10" with the 10:1 crayford focuser. Regarding collimation, do I need to make sure that the focuser itself is at right angles to the tube/primary mirror?
If so, how do I make the adjustment? There are screws all over the focuser including two grub screws and I wouldn't know which to start with. 
Many thanks for your help.
Shane |
Hi Shane
If the focuser isnt at a right angle to the tube anyway, then i would be concerned.
i wouldnt worry too much about the focuser just now, you will probably find that jsut doing the optical alignment is all you need
