KaiYang

Thank you guys for the quick reply. Unfortunately I got this used (well, the guy never open the box, consider new) so probably no way to return to Takahashi... ;-(

Hi, this is Kai from California, USA. ;-) I wish I read this thread before getting my FSQ-85. I also suffer from the eggiee stars at the corners. The stock focuser was not tight at the beginning -- here is the video I took: But even after tighten it, I still see the eggieeee stuffs. By rotating the camera (via CAA), I can see the distortion changes a little bit but I cannot draw any conclusion... Here are some short exposure pictures (STT-8300 CCD, L filter, 10s expo, tracking / guiding) - rotate 0 / 90 / 180 degree each With or without reducer doesn't seems make any difference... ;-( Not sure what to do. Not sure if getting an Feather Touch focuser will resolve this... Any suggestion? -Kai