|
collimation question
Hi there i was just wondering after doing a collimation on my 10" dob i done the star test and in the centre of the eyepiece i have a perfect orb with al the rings in right place the only thing is should this perfect orb distort as it moves to the edge of the eypiece, distorting as in not being a perfect circle?? or do i have a problem??
Cheers,
Stu..
|