ES Comet Hunter/mak-newt collimation problemsPosted By Gene Carsia |
My ES David Levy Comet Hunter has never given decent views since purchased. After hours of collimation attempts w/ a 2" Hotech laser and a combo Cheshire/sight tube I threw in the towel and shipped it back to ES. Their customer service is great, but when I received it was still horrible- when tried on the moon it was never in focus. Maybe rough shipping, so I recollimated it and the laser is spot on, but a "focused" star looks like a small doughnut and moving the focuser one way looks like a horizontal line and the other side of focus is a vertical line-?astigmatism. Any ideas on what would cause this? Please help if you can.