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LBN 576 - The Garlic Nebula

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Mars f32 LRGB 12/4/09

Started by fugardi, 12/06/2009 03:02AM
Posted 12/06/2009 03:02AM Opening Post
Friday morning I was lucky to have a short opening between passing clouds with 3/5 seeing and transparency to collect 1 avi run with my C11. I pulled the camera out of the 3x barlow until the B channel gave a 75% histogram at 15fps/max gain. This was approx 1/2" which yielded around f32. Here's the DMK21 capture info, all taken at 75% histograms:
L 90s 60fps G=861
R 90s 60fps G=1004
G 120s 30fps G=941
B 160s (20s cut short from clouds) 15fps, G=1023

I preprocessed with ninox, stacked in Registax, and oombined RGB in Images Plus. The RGB Lum was extracted and then recombined with the actual collected L data. The extracted L shows more contrast, but the actual L seemed to have less noise. LrRGB images recombined & final deconvolutions and reduced B,G brightnesses applied.

Regards,
Steve


Attached Image:

fugardi's attachment for post 49325
Posted 12/06/2009 03:04AM #1
Collecting at 75% histograms burned the polar caps if I tried to resample at 1.5x. Next time out, I will enlarge the image until the peak histogram is approx 67%. Attached is the detailed channel data.

Regards,
Steve



Attached Image:

fugardi's attachment for post 134379
Posted 12/08/2009 03:24PM #2
Steve, Great shot of Mars. What is B channel? I am glad to see that you mentioned the tecnique used in making this great Mars piucture.Best Wishes. Mahesh Yadav
Posted 12/08/2009 08:31PM #3
Steve,
I've been seeing your pics since you first started posting,
and you just keep getting better and better!
Thanks for posting!
ClearSkies!
MB