· 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 Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing Previous   Index   Next   Threaded   Pages: 1 fernando jorge member Reged: 10/15/09 Posts: 39 Loc: Montevideo, Uruguay Sigma DP-1 Digital Camera       #3415499 - 10/28/09 05:38 AM Edit   Reply   Quote Quick Reply   hi! has anyone have used the sigma dp-1 digital camera for astropohtography? it seems to have a very big sensor, i assume that's a good thig Optical Sensor Size: 20.7×13.8mm -------------------- _______________________________________________ Nexstar 6SE Celestron 25mm/Meade 15mm s4000, 9mm s5000/Powertank 20x60 soviet binoculars 10x30 Bushnell binoculars Post Extras:       ccs_hello Post Laureate Reged: 07/03/04 Posts: 3300 Re: Sigma DP-1 Digital Camera [Re: fernando jorge]       #3415515 - 10/28/09 06:27 AM Edit   Reply   Quote Quick Reply   It's known to be a bit noisy in astrophotography applications. Clear Skies! ccs_hello Post Extras:       robjohn super member Reged: 06/04/08 Posts: 125 Loc: West Hills, CA Re: Sigma DP-1 Digital Camera [Re: fernando jorge]       #3415576 - 10/28/09 07:43 AM Edit   Reply   Quote Quick Reply   Because of common-mode signals, where excitation of one layer causes some signal in neighboring layers, there is color noise. This color noise is most noticeable in low light conditions. Thus, the Foveon X3 sensor is not really suited to astronomical use. -------------------- Rob Johnson Celestron 14" SCT | 8" SCT | 102mm f/5 | Ultima 8x56 Takahashi FSQ-106EDX f/5 ZenithStar 105mm f/7 | 80mm f/6 Vixen ARK 16x80 CGE | CG-5 Canon 50DH Starfish autoguider Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 9 registered and 12 anonymous users are browsing this forum. Moderator:  Charlie Hein, knuklhdastnmr  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 59 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*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Celestron SkyScout and Meade mySky   Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning and Intermediate Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *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*Speciality Forums* -----   AstroArt   Astronomy Software & Computers   Stellar Media   Astro Outreach, Clubs and Star Parties*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements CN Forums Home

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