yeah i know about the coma but the problem was that i couldn't reach focus for a start with the 2" ED barlow (that had the thread for the UVIR filter). so i removed the barrel of the barlow to give me just the lense to no avail a bit closer but still doghnuts. in dispare my mate goes i have a MPCC and remembering that people have used MPCC's to get that last bit of focus i thought well why not. HAZZAR. I gained focus but at the cost of COMA, though it was a good lesson in how to run a F 4.7 Reflector as a F9.4 with tracking as my tracking was spot on. all i have to do is put a extension between the barlow and the T ring to push the lense into the focus point. and then put a bit of a thread into the adaptor that i use for the camera straight to the focuser.! once these 2 things are sorted ill be right on! and ill post the images then
