so if I wanted to image M22 I would focus on Antares then go to M22? Thanks, Debbie On Tue, May 31, 2011 at 11:24 AM, Joe Bauman <josephmbauman@yahoo.com>wrote:
Hi Debbie, You do see the image on the screen -- it is live. Your computer screen shows exactly what the camera sees and can update it quickly. If you use a bright star the focus can have an exposure can be about as fast as the camera is capable of taking, say 1/1000 of a second, and it refreshes immediately. Best wishes, Joe
________________________________ From: Debbie <astrodeb@beyondbb.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Tuesday, May 31, 2011 11:19 AM Subject: [Utah-astronomy] couple of questions regarding CCD imaging
Here is my first question. How do you achieve focus with a CCD camera since there is no live focus mode? Does the software let you know when you are in focus?
How does the guide chip on the SBIG dual chip cameras or 237 chip work when finding a guide star? Is this easier than having a separate guidescope and autoguider?
I want to know what I'm getting into before I dive into CCD imaging?
Debbie _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php