· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Warning: array_keys(): The first argument should be an array in /usr/www/users/asaint/ubbthreads/showthreaded.php on line 132 Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing Previous   Index   Next   Flat   Tonk Post Laureate Reged: 08/19/04 Posts: 4358 Loc: Leeds, UK, 54N Re: Fun and games with imaging comets!       01/04/08 11:43 AM Edit   Reply   Quote   Quick Reply:   No its a straight forward subtract using the "Image math ..." menu item Take a look at this link as it summaries other sometimes better methods - http://tinyurl.com/24dfxy Finally Deep Sky Stacker (free) written by Luc Coffier (he posts here) is making progress on automating stacking comets. Keep an eye out as at some point soon I'll review DSS's comet handling here (maybe in 3/4 weeks time) -------------------- Televue 85, GM-8/Gemini, Canon 40D (unmodded), Canon 450D (modded w/Astronomiks clip-ins - UV/IR, OWB) Coronado SM60/BF10, Baader Herschel Wedge Leeds Sky Clock Ripon Sky Clock Post Extras       Entire thread Subject Posted by Posted on 12/31/69 07:00 PM Extra information 11 registered and 7 anonymous users are browsing this forum. Moderator:  Charlie Hein, knuklhdastnmr  Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Rating: Thread views: Jump to *International Year of Astronomy 2009* -----   Global Coordination   Cornerstone Projects   Special Projects   Special Task Groups   Global Activities   National and Regional Activities   IYA 2009 in Africa   IYA 2009 in the USA*Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Beginners Forum   Celestial Events   Light Pollution*Observing* -----   NEO   General Observing   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Other* -----   Science of Astronomy & Space Exploration   AstroWebsites   Space Rocks CN Forums Home

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