Try using a Hartzman Mask. http://www.andysshotglass.com/HartzmanMask.html -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Troy Davidson Sent: Wednesday, August 18, 2010 11:43 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] First Light - USB Camera The focusing was the hardest part. The software didn't update the screen all the time. It was delayed and that made it hard to tell if I had passed a sharp focus or not. Plus, the air was unstable. The software would do a burst of shots. The focus on all those were all over the board. It was pretty amazing. But, I'll still keep playing with the camera and see what I finally come up with. ++++++++++++++++++ Troy Davidson www.istroyworking.com p://www.utahastronomy.com