Orion XT8i Dob
9x50 RACI Finder TELRAD Reflex Sight
Agena SWA 38mm 70 FOV 2" EP
Orion 25+10mm Sirius Plossl 52 FOV EP
ES 82* 11mm, 18mm 2" ES 68* 24mm
6mm, 25mm Ortho. EP
Televue 3X Barlow
Filters Baader Continuum, UV/IF cut, Lumicon UHC, DGM OIII.
SkySafari T-Ring and Adaptor for Olympus E-510 Oly sz-14 SteadyPix Deluxe iOptron SkyTracker 7.7lb Electro Dot Sight RD400X
SCOPES: CPC1100; AT66ED; EdgeHD 8";SVR90T RAPTOR
MOUNTS: CGEM; Vixen GP2; iOptron Sky Tracker; Celestron AVX
CAMERAS: Canon 60D;Lodestar
EYEPIECES:TV N31T5;Delos14;Delos8;Pan27; PL20;PL25;PL32;TMB9
The Lord sits enthroned above the circle of the earth...He stretched out the heavens like a canopy.
Nine telescopes of a diverse nature. My Web Site Cosmic Cat: a children's book about astronomy for iPad. English Lessons for Amateur Astronomers
Quote:You probably picked one of the harder objects to image as your first object. It's very easy to blow out the core of m42, yet the object has a very high dynamic range. In light polluted skies, you'll want to use a light pollution filter, and then use a Minimal Exposure Regime as explained in the link. Using your histogram is the key to getting your DSLR exposures correct. Patrick
Quote:Is the light pollution the main issue with the photo then?
Quote: Quote:Is the light pollution the main issue with the photo then? No, you've over exposed the core of M42. That's detail you'll never get back since it's all white. M42 is a difficult object to get right because it has very bright regions and then a lot of faint wispy regions. To get it right you really need to expose for the core and also expose for the faint areas and then combine them.If I were you I'd pick an easier object to start with. Secondly, you need to be taking a lot more subframes. Several hours worth would be more like what you need. You need lots of subframes so that you can start to get rid of the noise a camera produces. Did you take darks, flats, and bias frames as well? You need those other frames to subtract out the noise and camera artifacts to get to the real image.Get the book A Beginners Guide to DSLR Astrophotography and read it. Patrick
This is my first astrophoto ever. Its is a composite of 5 90 second exposures through my 5" apo. Is cold here in Denver so I set up the scope on my balcony. I cant see north from my balcony so I just pointed the mount in general north. I did use the SSAG.
Does this look like a 7.5 minute exposure to you guys? I guess Im a little disappointed. Granted the light pollution is bad, but I was expecting more light/detail with 7 minutes.
Im considering returning it and getting a Celestron Edge 1100HD on the CGEM DX with a hyperstar.
I used Deep Sky Stacker and Adobe CS5.
Any advice is appreciated!
Quote: I am in Denver so the images came out bright red when loaded onto the laptop
Orion XT8 Classic, Self built EQ platform
AstroTech 72ED, AstroTech 6 Imaging Newt
Celestron Advanced VX EQ Mount
Celestron NexStar SE 4/5 Mount (for grab and go)
Canon T3i, Canon XT (Hap Griffin Baader Mod)
QHY5L-II Mono/Orion 50MM Mini
Fort Bend Astronomy Club
1987 Meade LX3 2120 10" SCT on hypertuned EQ6 Pro Baader Self-Mod Canon XS_CLS Clip Filter DSI color_Orion ST80 Coulter 10" Compact Odessey Dob http://www.astrobin.com/users/shawnhar
Clear skies - Jim Crazy PNW imager !
A-P Mach1 on 12" concrete pier - ROR structure.
Tak FSQ85-EDX, Tak FS-128. Orion 8" f/3.9 w/MoonLite motorized - MPCC MkIII CCD:
SBIG 8300M/FW8, Astrodon 36mm LRGB, 5nm Ha, 3nm SII, OIII - Canon EOS 6D unmod SSI3, SSAG,
Skytools3pro, MaxImDLpro, PSCS5, PSPpro, TheSkyX, TheSky6, BYE, StarTools
Orion XX14g -for visual- diags, ep's, accy tubes, Binocs .
Quote:Ben, Can you please post a single light frame on dropbox or something like that?I wouldn't mind having a look.Regards,Steve
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Warren - Stargazing since the 60's! Scopes: ETX-LS6, ED80T, AT6RC, Lunt LS60T, C9.25 Mounts: Atlas EQ-G, Vixen Portamount II Cameras: Atik 314L+,DMK31AU03,SSAG, ASI120MC Filters: Astrodon LRGB, Orion HA, SII, OIII Acc: Orion 5 place Filter wheels x 2, Flatman Primary Imaging site: Bortle Scale Class 6 Red Zone http://astrobin.com/users/rigel123/