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geminijk
scholastic sledgehammer


Reged: 04/03/08

Loc: TN
Re: Jupiter in very good seeing: 10-17-2012 new [Re: Az Frank]
      #5478007 - 10/18/12 11:43 PM

Superb image, and great detail on the moons too!

John


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BKBrown
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: Jupiter in very good seeing: 10-17-2012 new [Re: BKBrown]
      #5479720 - 10/19/12 11:35 PM Attachment (20 downloads)

Sorry it took me so long to get back with an RGB-IR image (RGB-IR1 from 10-17-2012 07-30-00 UT), I have been struggling with the processing. I cannot seem to do anything about the violet shade, and I think the only way to capture the satellite detail from my first image is to process the moons separately...maybe a bit later. I am open to suggestions and critiques, still being relatively new to the mono cam and filter game I appreciate any kind of constructive feed back. Thanks!

Clear Skies,
Brian

Edited by BKBrown (10/20/12 09:32 AM)


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BKBrown
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: Jupiter in very good seeing: 10-17-2012 new [Re: geminijk]
      #5480884 - 10/20/12 07:39 PM

Thanks James, moxican, Frank, and John! Still trying to figure out the violet tone thing, nobody has chimed in on that. One thing I noticed trying different processing routines with RGB and RGB-IR stacks - the color is much subdued when I don't use the IR image, but the detail really drops off, not a good trade off in my book...

Clear Skies,
Brian


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lcd1080
scholastic sledgehammer


Reged: 06/03/10

Loc: Maryland, USA
Re: Jupiter in very good seeing: 10-17-2012 new [Re: BKBrown]
      #5481081 - 10/20/12 09:41 PM

Brian, in the matter of the violet shade if you use Astra Image to combine the R, G, and B TIFF files you can select 80% or 90% intensity for the B channel to balance the colors a little better. What advantages do you find for the IR685 pass filter over an IR742? I have the latter and am considering buying the former. Nice RGB image with the monochrome cam!

Pete

Edited by lcd1080 (10/20/12 09:45 PM)


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BKBrown
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: Jupiter in very good seeing: 10-17-2012 new [Re: lcd1080]
      #5482444 - 10/21/12 06:04 PM Attachment (7 downloads)

Hi Pete. I think the jury is out on the cost/benefits of the 685nm filter at this point, I need more time to work with it and do direct imaging comparisons...so more on that later. I did manage to mitigate the violet tones a bit in processing by manipulating the intensity of different channels, and the moons look ok. I think I'll let it ride with this image for now...

Clear Skies,
Brian

Edited by BKBrown (10/21/12 06:17 PM)


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bunyon
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Reged: 10/23/10

Loc: Winston-Salem, NC
Re: Jupiter in very good seeing: 10-17-2012 new [Re: BKBrown]
      #5482474 - 10/21/12 06:19 PM

I have the 742 and 685 - the 685 is a LOT brighter and has about the same attenuation of seeing issues. I don't know that I'd make a special point of buying the 685 if you like the 742 but if you have neither, I'd buy the 685.

Beautiful images, Brian.


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BKBrown
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: Jupiter in very good seeing: 10-17-2012 [Re: bunyon]
      #5482492 - 10/21/12 06:44 PM

Thanks Paul! I agree that the main benefit seems to be the brighter image which is no small thing if you are not shooting with a C14. For instance, folks using C8/C925 class OTAs in particular might want to consider the 685nm filter...

Clear Skies,
Brian


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