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Astrophotography and Sketching >> Beginning and Intermediate Imaging

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Mobius1
professor emeritus


Reged: 08/28/05
Posts: 700
Loc: Madison, WI / Gurnee, IL
Monochrome basics? new
      #3392319 - 10/16/09 02:22 AM

Just curious since I have very little experience with CCDs. I prefer DSLRs, but I'm going to play around a bit with a high sensitivity monochrome camera anyways for some planetary work, and maybe some galaxy imaging at long f/l. My question then is, how does basic imaging with a monochrome camera work? I figure that you can either take a single frame. Or a luminance, plus R,G,B frames. But with RGB, do you then still have a net black and white image? Or does assigning each color to a channel net you a color image in the end? I know it's all in the processing...

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Martin

William Optics 66SD
Orion 100ED
Orion 120-ST EQ
PST-Ha
Celestron CGE 1100
Canon Rebel XSI with Astronomik filters
DSI-IIC
Homemade spectroscope in progress...
Yerkes Observatory Volunteer
(24" Cass on weekends)


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D_talley
scholastic sledgehammer
*****

Reged: 07/07/05
Posts: 890
Loc: Richmond VA
Re: Monochrome basics? [Re: Mobius1]
      #3392570 - 10/16/09 09:11 AM

You have it right. You get black and white images in RGB which you assign to a channel in Photoshop or other software.

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Dwight

SBIG ST2000xm
TEC 140 APO #74
Meade LX200 14 OTA
Orion 12.5 DOB
Celestron C8+
Celestron 102AZ
Losmandy G11 Gemini
Argo Navis
Canon 350D self mod
Hyperstar
ST-4 Guider
STV Guider


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