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] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing Previous   Index   Next   Threaded   Pages: 1 nickatnight professor emeritus Reged: 04/14/08 Posts: 643 Loc: Santa Clarita, CA (LA Suburbs) M57 Ring Nebula in Lyra - Most Observed P-Nebula       #2624730 - 09/04/08 11:59 PM Attachment (45 downloads) Edit   Reply   Quote Quick Reply   Here's my take on the Ring Nebula with 90 sec exposures (shot 1.5 hours, stacked best 30 minutes worth) with the Canon XTi prime focus @ f6.3 iso 1600 through the CPC925. I'm finding I have to use very different processing techniques for bright "well exposed" images as opposed to the dim stuff I often shoot. My sky backgrounds come out naturally when I have to pull hard on under-exposed images. But with well-exposed images, you have to pull the background while not blowing out the main object, and without making the object look "flat." It's tough, and I don't think I did too well on the Ring here. -------------------- nickatnight Celestron CPC 9.25" GPS Lumicon 2" LumiBrite Diagonal Meade s5000 18mm UWA, Meade 6.7mm UWA, Parks G.S-5 10mm, Celestrom 40mm Plossl Parks 2x Barlow, Meade Tele-Extender Celestron f6.3 Focal Reducer Lumicon UHC Filter and Deep Sky Filter Canon Rebel XTi (prime) Canon Powershot G9 (afocal) Canon EOS T-Ring and Parks T-Adapter Lumicon Univ DigiCam Adapter Post Extras:       Nils_Lars scholastic sledgehammer Reged: 01/04/08 Posts: 985 Loc: Santa Cruz Mountains , CA Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: nickatnight]       #2624827 - 09/05/08 01:06 AM Edit   Reply   Quote Quick Reply   I just tried the ring last weekend and I think yours came out really well , processing is tough on this one -------------------- Erik Orion ED 80 Orion Atlas GOTO mount Williams Optics reducer Various eyepieces and other gear Baytronix 80mm guidescope Orion Starshoot Autoguider PHD guide Canon 400D (unmodded) Stilleto Focuser Tamron 75-300mm&28-80mm lenses NexImage webcam http://home.comcast.net/~eriknlarsen/site/?/photos/ Post Extras:       nofxrx Pooh-Bah Reged: 07/12/05 Posts: 1460 Loc: palm bay,florida Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: Nils_Lars]       #2626560 - 09/05/08 11:44 PM Edit   Reply   Quote Quick Reply   Wow great job again Nick! You even caught the little NGC(????) galaxy too... It's at about 4:00 and 1 inch from the ring itself. Great processing,again!! -------------------- Brent Oliver 3 Wonderful dogs: Sadie, Kara and Ozzie Celestron C10-N///C9.25///Orion 80ED///WO ZS66SD White Celestron CI-700 & ASGT Eq. Mounts Nikon D40Xa///SBIG ST-402ME/Class 1/CFW///DSI-PRO... My Gallery Ohh yeah,and a VERY undersanding wife!! Post Extras:       nickatnight professor emeritus Reged: 04/14/08 Posts: 643 Loc: Santa Clarita, CA (LA Suburbs) Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: nofxrx]       #2626701 - 09/06/08 01:39 AM Edit   Reply   Quote Quick Reply   Thanks Erik and Brent - I feel the ring looks kinda play-doh-like instead of dust-and-gas-like. I should try it without the focal reducer sometime so I have more room for those Ring photons to sink in. It sure is bright enough to not need the reducer. I had no idea about the galaxy. Cool,I think I see it there. I'll have to look at the full size when I get home and look up the NGC#. -------------------- nickatnight Celestron CPC 9.25" GPS Lumicon 2" LumiBrite Diagonal Meade s5000 18mm UWA, Meade 6.7mm UWA, Parks G.S-5 10mm, Celestrom 40mm Plossl Parks 2x Barlow, Meade Tele-Extender Celestron f6.3 Focal Reducer Lumicon UHC Filter and Deep Sky Filter Canon Rebel XTi (prime) Canon Powershot G9 (afocal) Canon EOS T-Ring and Parks T-Adapter Lumicon Univ DigiCam Adapter Post Extras:       Doug6952 sage Reged: 07/24/08 Posts: 405 Loc: West Milford, NJ Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: nickatnight]       #2626753 - 09/06/08 02:41 AM Edit   Reply   Quote Quick Reply   Nice picture. The galaxy is IC1296. I caught it in an image I did of the ring. M57 and IC1296 Doug -------------------- Doug Sometimes I wonder......."Why is this frisbiee getting bigger" ...... Then it hits me! Orion EON 72mm Meade 8" starfinder Meade ETX 90 OTA CG-5 Advanced GT Mount DSI Pro III Orion SSAG Stellarvue F50 Baader LRGB and Ha filters Post Extras:       nofxrx Pooh-Bah Reged: 07/12/05 Posts: 1460 Loc: palm bay,florida Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: Doug6952]       #2627303 - 09/06/08 12:26 PM Edit   Reply   Quote Quick Reply   Thanks Doug,I can never remember the catalog and # of that little guy!!! Nick, I too think this would be a great object w/o the F/R!!! Cant wait to see it!!! -------------------- Brent Oliver 3 Wonderful dogs: Sadie, Kara and Ozzie Celestron C10-N///C9.25///Orion 80ED///WO ZS66SD White Celestron CI-700 & ASGT Eq. Mounts Nikon D40Xa///SBIG ST-402ME/Class 1/CFW///DSI-PRO... My Gallery Ohh yeah,and a VERY undersanding wife!! Post Extras:       ChazK Pooh-Bah Reged: 11/23/05 Posts: 1453 Loc: Melbourne, Florida Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: nofxrx]       #2627677 - 09/06/08 04:03 PM Edit   Reply   Quote Quick Reply   Great image....nice processing -------------------- Tak TOA 130mm/NJP Temma2 Tak FS 60CB Canon 40D (unmodded) Astronomik CLS Canon EF 28-135mm f/3.5-5.6 www.digitalunatic.com Post Extras:       jgibson1@emich sage Reged: 06/11/06 Posts: 222 Re: M57 Ring Nebula in Lyra - Most Observed P-Nebula [Re: nickatnight]       #2630384 - 09/08/08 08:55 AM Edit   Reply   Quote Quick Reply   Not a bad start for the Ring. My early images were of what appeared to be a bloated donut void of any color! Can I make a recommendation.... If you don't already own one, get a 2x and/or a 4x Televue Powermate. These will aid immensely in capturing these little jewels with a decent image scale. I myself am a big planetary observer and and imager and have been very pleased with the images that have been posted of these tiny and obscure planetarys’. Just my two cents... Jason Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 14 registered and 27 anonymous users are browsing this forum. 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