Quote:
Originally Posted by gregbradley
If in fact your guiding is good then that only leaves optical movement like the secondary is moving slightly or the primary is distorting slightly.
Greg.
|
If the primary or secondary move slightly then the guider would register this movement also. It would also effect collimation I guess. If it is only in corners of images then you can rule out anything to do with the guider because elongation would be in the center of the frame too. My money is on the secondary or focuser flexing.