The Eagle and the Swan

The Eagle and the Swan.

Equipment

• Samyang 135mm f/2
• QHY163M
• Baader narrowband filters
• Sky-Watcher HEQ5 Pro
• QHY5L-II-C and QHY 30mm guidescope

Acquisition (Total : 5.9h)

• Location : Backyard, bortle 5
• Ha : 58x180s (2.9h)
• OIII : 30x180s (1.5h)
• SII : 30x180s (1.5h)

Processing (PixInsight)

Individual channel processing

• DynamicCrop

• DynamicBackgroundExtraction

• Noise reduction (TGV and MMT)

• EZ Soft Stretch (script)

• HDRMultiscaleTransform
• Deconvolution (tutorial)

Color combination (tutorial)

• R  : (Oiii^~Oiii)*Sii + ~(Oiii^~Oiii)*Ha
• G : ((Oiii*Ha)^~(Oiii*Ha))*Ha + ~((Oiii*Ha)^~(Oiii*Ha))*Oiii
• B  : OIII
  

Luminance processing

• L : Ha

• StarNet++

• Large scale sharpening (MLT)

• HDRMultiscaleTransform

• LocalHistogramEqualization

• DarkStructureEnhance

• Adding the stars back (PixelMath)

LRGB processing

• LRGBCombination
• Star reduction (tutorial)
• CurvesTransformation
• BackgroundNeutralization
• HSL sliders in Lightroom

Taken in July 2020