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Pages: 1 shadowdoc31 super member Reged: 11/27/08 Loc: Chattanooga, TN - USA Europa shadow transit       #5489646 - 10/26/12 02:42 AM Attachment (31 downloads) Edit   Reply   Quote Quick Reply   Greetings-- Last night had the best air in quite a while, posting my best pic of the lot. I welcome your comments and suggestions. Thanks, RW Additional details-- Celestron 11" reflector DMK 21AU618 monochrome camera / 2x barlow ~1,000 of 4,000 frames in each channel stacked processed as rRGB / filtered luminance Post Extras:       Mike Phillips Carpal Tunnel Reged: 02/21/06 Loc: Swift Creek, NC - 35.682 N, 78... Re: Europa shadow transit [Re: shadowdoc31]       #5489932 - 10/26/12 10:02 AM Edit   Reply   Quote Quick Reply   Very nice detail. Perhaps a bit of noise that you can soften without loosing detail? Have you tried WinJUPOS? I've also found that while the R as lum adds some detail, it changes the color balance. I like what you've got! Mike Post Extras:       bunyon Carpal Tunnel Reged: 10/23/10 Loc: Winston-Salem, NC Re: Europa shadow transit [Re: Mike Phillips]       #5489963 - 10/26/12 10:32 AM Edit   Reply   Quote Quick Reply   I think Mike is right: you have great data there. The final image is a bit too red on my screen and fairly noisy. Can you stack more frames per channel? My first attempts (disclaimer: I'm far from expert at this) I assumed the total number of frames would smooth the noise but I found that if the individual channels were still noisy, that noise showed up in the compilation. So, maybe boost to 1500 or 2000 frames per channel and tweak the color and you'll have a (more) awesome shot. Post Extras:       tjensen Carpal Tunnel Reged: 02/16/05 Loc: Chapel Hill, NC Re: Europa shadow transit [Re: bunyon]       #5489967 - 10/26/12 10:34 AM Edit   Reply   Quote Quick Reply   What Mike and Paul said. Great shot!!!! Post Extras:       shadowdoc31 super member Reged: 11/27/08 Loc: Chattanooga, TN - USA Re: Europa shadow transit [Re: tjensen]       #5490090 - 10/26/12 11:54 AM Attachment (8 downloads) Edit   Reply   Quote Quick Reply   Thanks for the input; definitely a lot of noise present, especially in the darker channels. I played around with the processing a bit (more frames, less sharpening, color balance), and have attached a less noisy result below. Thanks for looking! Post Extras:       ToxMan Carpal Tunnel Reged: 01/23/11 Loc: Tucson, Arizona, USA Re: Europa shadow transit [Re: shadowdoc31]       #5490126 - 10/26/12 12:19 PM Edit   Reply   Quote Quick Reply   There is some good improvement in second image. Wonderful data! Thanks for sharing. Post Extras:       kowspot2000 professor emeritus Reged: 07/23/11 Loc: Corvallis, OR Re: Europa shadow transit [Re: ToxMan]       #5490600 - 10/26/12 05:32 PM Edit   Reply   Quote Quick Reply   Wow! That's amazing. I can't believe you can see the shadow on its surface :O Post Extras:       Pages: 1

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