That looks like a tracking error not collimation. -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of gazebo4sale@comcast.net Sent: Tuesday, May 20, 2014 1:51 PM To: Utah Astronomy Subject: [Utah-astronomy] M64 Image Hi, I captured this image of M64 during my trip to Capital Reef 3 weeks ago. I have to get to the bottom of my collimation problem, but the image came out interesting. see: http://home.comcast.net/~galico/M64.jpg Thanks Steve Gallenson 25X300" Light Subs Dark,Flats, Bias calibrated. Staked in Images Plus Backyard EOS camera control Hutech Modified Canon T3i Takahahshi FSQ 106 N for imaging Takahahsi EM 200 Temma 2 mount Guided with Starlite Express Loadstar on 500 mm Nikon Lens. Processed with IP and CS5 using Scott's LRGB techniques. ----- Original Message ----- _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".