M42/M43 Orion nebula

I did an other processing of this image to get some more detail out.

 

Camera: Nikon D3x

Filter: UHC-s Baader 2" nebula filter

Optics: Celestron 9,25" EdgeHD

Guiding: LVI SmartGuider 2

Mount: SkyWatcher NEQ6 Pro

 

DeepSkyStacker 3.3.2 settings:

 

Stacking mode: Mosaic

Alignment method: Bicubic

18 frames (ISO: 1600) - total exposure: 1 hr 24 mn 18 s

 

RGB Channels Background Calibration: Yes

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Offset: 108 frames exposure: 1/8000 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Dark: 18 frames exposure: 4 mn 41 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Flat: 32 frames exposure: 5 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

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Processing in PixInsight 1.7

 

12 times:

HistogramTransformation: Midtones 0,45 and highlights 0,85

Writing file: Writing TIFF: 32-bit floating point, 3 channel(s)

 

HDRComposition

 

6 times

ChannelExtraction: Processing view: HDR

ATrousWaveletTransform: Processing view: HDR_L

HistogramTransformation: Processing view: HDR

HDR_L: Masking from swap files... (Mistones 0,4)

DarkStructureEnhance (7 layers, Amount 0,15)

 

HistogramTransformation:

- Red : No change

- Green: Shadows 0.1689, Midtones 0.3808

- Blue : Shadows 0.1872, Midtones 0.3511

- RGB/K: Shadows 0.0799

 

DarkStructureEnhance (7 layers, Amount 0,15)

 

ColorSaturation

 

ChannelExtraction: Processing view: HDR

CloneStamp to darken the center

HistogramTransformation:

- RGB/K: Midtones 0.45

 

HistogramTransformation:

- RGB/K: Shadows 0.0639, Midtones 0.4543

Done