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2013: Messier 27; The Dumbbell Nebula in RGB
Image details
Date:  July 7, 8, and 9, 2013
Exposure: 10 hours (60x 10 min), ISO800, 18 Darks, 20 Bias, and 30 Flats

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: Emmen, The Netherlands

High resolution: (2,72 Mb)
DSLR-LLRGB post-processing workflow  according to Scott Rosen's video tutorial:
 
Original 32-bit floating point RGB image in Photoshop CS3:
 -Convert image to 16-bits
 -GradientXterminator (med/low, and fine/medium)
 -Levels to set black point
 -Make duplicte image for Luminance processing

Convert Luminance image to grey scale and back to RGB
 -Curves (anchored background and highlights)
 -Carboni's v1.6 Deep Space Noise Reduction [Removes noise from background, not DSO]
 -High pass filtering on the details in NGC6888 (8px overlay & 40px soft light; Don Goldman method)
 -Levels correction for background blackpoint

Continue processing RGB image
 -Curves (anchored background and highlights)
 -Increase saturation using Adam Block method, 3x
 -Selective color, Reds (-100% Cyan), Yellow (-100% Cyan), Blue (+100% Cyan, -100% Yelllow), 50% opacity
 -Insert luminance at 100% with layer mask to only add detail to the core of M27

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