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2013: Van den Bergh 141; The Ghost Nebula
Image details
Date:  July 16,  and 19, 2013
Exposure: 4 hours and 30 min (5 + 22x 10 min), ISO800, 18 Darks, 30 + 30 Flats, and 20 Bias

Telescope: 8" Skywatcher Newton
@F/5 with MPCC 
Mount: NEQ6-pro, controled by EQmod/CdC, guided by  QHY5/9x50 Finder Guider/PHD
Camera: Peltier-cooled Canon 350Da (TEC@10C)
Location: Sankt Vith, Belgium

High resolution: (2,46 Mb)
DSLR-LLRGB post-processing work flow  according to Scott Rosen's video tutorial:
 

Original 32-bit floating point RGB image in Photoshop CS3:
 -Convert image to 16-bits
 -Color balance with levels
 -Levels to set black point
 -Digital Development Processing in Nebulosity 2.5
 -Make duplicate image for luminance processing

Convert Luminance image to grey scale and back to RGB
 -Curves (anchored background and highlights), 2x
 -Carboni's v1.6 Deep Space Noise Reduction [Removes noise from background, not DSO]
 -Screen Mask Invert to bring out faint background dust
 -Levels correction for background blackpoint
 -GradientXterminator (med/low, and fine/medium)
 -Star reparation to restore slight miscollimation/sensor flatness (gradient masked to the left side of the frame)
 -Star shrinking to balance starsize after star repair (gradient masked to the right side of the frame)

Continue processing RGB image
 -Curves (anchored background and highlights), 2x
 -Hasta La Vista Green medium
 -Carboni'sv1.6 Space Noise Reduction

 -GradientXterminator (med/low, and fine/medium)
 -Carboni's v1.6 Less Crunchy More Fuzzy
 -Increase saturation using Adam Block method, 3x
 -Levels correction for background blackpoint

 -Selective color, Reds (-100% Cyan), Yellow (-100% Cyan), Blue (+100% Cyan, -100% Yelllow)
 -Star reparation to restore slight miscollimation/sensor flatness (gradient masked to the left side of the frame)
 -Star shrinking to balance starsize after star repair (gradient masked to the right side of the frame)

 -Insert luminance at 70%
 -
Increase saturation using Adam Block method
 -Carboni's v1.6 Less Crunchy More Fuzzy
 -Gaussian Blur 2px
 -Insert luminance at 100% opacity
 -Hasta La Vista Green medium
 -Levels correction on Red
 -Levels correction to restore blackpoint on Green and Blue
 -Crop edges


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