Cygnus Loop RASA and Optolong L-eNhance

[Topographic]

Cygnus Loop with RASA 8, Zwo ASI071MC Pro, Optolong L-eNhance, 158 X 40" exposures, gain 95, -5C. Darks/Bias. No flats, No guiding. Moon 80% in Bortle 3.
I stacked using Siril-ic after disappointing results with DSS ( the colour seemed to disappear)

Any criticism on processing welcome, I am slowly getting to grips with StarTools.

Thanks

David




Cygnus Loop with RASA8Loading red channel data
File loaded in LRGB module [C:\Users\david\Desktop\Developed images\Cygnus Loop 09July20\Cygnus.fit].
Loading green channel data
File loaded in LRGB module [C:\Users\david\Desktop\Developed images\Cygnus Loop 09July20\Cygnus.fit].
Loading blue channel data
File loaded in LRGB module [C:\Users\david\Desktop\Developed images\Cygnus Loop 09July20\Cygnus.fit].
--- Compose
Parameter [Luminance, Color] set to [L + Synthetic L From RGB, RGB]
Parameter [Color Ch. Interpolation] set to [On]
Parameter [Lum Total Exposure] set to [Not set]
Parameter [Blue Total Exposure] set to [1h00m (60m) (3600s)]
Parameter [Green Total Exposure] set to [2h00m (120m) (7200s)]
Parameter [Red Total Exposure] set to [1h00m (60m) (3600s)]
Image size is 4944 x 3284
Type of Data: Linear, was not Bayered, or was Bayered + white balanced
--- Auto Develop
Parameter [Ignore Fine Detail <] set to [Off]
Parameter [Outside RoI Influence] set to [15 %]
Parameter [RoI X1] set to [0 pixels]
Parameter [RoI Y1] set to [0 pixels]
Parameter [RoI X2] set to [4944 pixels (-0)]
Parameter [RoI Y2] set to [3284 pixels (-0)]
Parameter [Detector Gamma] set to [1.00]
Parameter [Shadow Linearity] set to [50 %]
--- Bin
Parameter [Scale] set to [(scale/noise reduction 50.00%)/(400.00%)/(+2.00 bits)]
Image size is 2472 x 1642
--- Crop
Parameter [X1] set to [17 pixels]
Parameter [Y1] set to [22 pixels]
Parameter [X2] set to [2436 pixels (-36)]
Parameter [Y2] set to [1618 pixels (-24)]
Image size is 2419 x 1596
--- Wipe
Parameter [Mode] set to [Correct Color & Brightness]
Parameter [Precision] set to [256 x 256 pixels]
Parameter [Dark Anomaly Filter] set to [1 pixels]
Parameter [Drop Off Point] set to [0 %]
Parameter [Corner Aggressiveness] set to [100 %]
Parameter [Aggressiveness] set to [75 %]
--- Auto Develop
Parameter [Ignore Fine Detail <] set to [1.2 pixels]
Parameter [Outside RoI Influence] set to [15 %]
Parameter [RoI X1] set to [194 pixels]
Parameter [RoI Y1] set to [640 pixels]
Parameter [RoI X2] set to [887 pixels (-1532)]
Parameter [RoI Y2] set to [773 pixels (-823)]
Parameter [Detector Gamma] set to [1.00]
Parameter [Shadow Linearity] set to [50 %]
--- Develop
Parameter [White Calibration] set to [Use Stars]
Parameter [Gamma] set to [1.00]
Parameter [Skyglow] set to [0 %]
Parameter [Digital Development] set to [Off]
Parameter [Blue Luminance Contrib.] set to [100 %]
Parameter [Green Luminance Contrib.] set to [100 %]
Parameter [Red Luminance Contrib.] set to [100 %]
Parameter [Dark Anomaly Headroom] set to [10 %]
Parameter [Dark Anomaly Filter] set to [2.0 pixels]
--- Contrast
Parameter [Expose Dark Areas] set to [No]
Parameter [Compensate Gamma] set to [No]
Parameter [Precision] set to [512 x 512 pixels]
Parameter [Dark Anomaly Filter] set to [1 pixels]
Parameter [Aggressiveness] set to [50 %]
Parameter [Dark Anomaly Headroom] set to [50 %]
--- HDR
Parameter [Small Detail Precision] set to [Max]
Parameter [Channels] set to [Brightness Only]
Parameter [Algorithm] set to [Optimize Hard]
Parameter [Dark/Bright Response] set to [1.00]
Parameter [Detail Size Range] set to [1000 pixels]
Parameter [Strength] set to [2.3]
--- Wavelet Sharpen
Parameter [Structure Size] set to [Large]
--- SNR-aware Wavelet Sharpening
Parameter [Scale 1] set to [100 %]
Parameter [Scale 2] set to [100 %]
Parameter [Scale 3] set to [100 %]
Parameter [Scale 4] set to [100 %]
Parameter [Scale 5] set to [100 %]
Parameter [Mask Fuzz] set to [4 pixels]
Parameter [Amount] set to [116 %]
Parameter [High SNR Size Bias] set to [85 %]
Parameter [Low SNR Size Bias] set to [0 %]
Parameter [Dark/Light Enhance] set to [50% / 50%]
--- Life
Parameter [Detail Preservation] set to [Linear Brightness Mask]
Parameter [Compositing Algorithm] set to [Multiply, Gamma Correct]
Parameter [Inherit Brightness, Color] set to [Brightness]
Parameter [Output Glow Only] set to [No]
Parameter [Airy Disk Sampling] set to [128 x 128 pixels]
Parameter [Airy Disk Radius] set to [8 pixels]
Parameter [Glow Threshold] set to [0 %]
Parameter [Detail Preservation Radius] set to [20.0 pixels]
Parameter [Saturation] set to [100 %]
Parameter [Strength] set to [100 %]
Parameter [Mask Fuzz] set to [1.0 pixels]
--- Color
Parameter [Bias Slider Mode] set to [Sliders Reduce Color Bias]
Parameter [Style] set to [Artistic, Not Detail Aware]
Parameter [LRGB Method Emulation] set to [Straight CIELab Luminance Retention]
Parameter [Matrix] set to [RGB:RBG]
Parameter [Dark Saturation] set to [2.00]
Parameter [Bright Saturation] set to [8.60]
Parameter [Saturation Amount] set to [318 %]
Parameter [Blue Bias Reduce] set to [1.32]
Parameter [Green Bias Reduce] set to [1.24]
Parameter [Red Bias Reduce] set to [1.00]
Parameter [Mask Fuzz] set to [1.0 pixels]
Parameter [Cap Green] set to [0 %]
Parameter [Highlight Repair] set to [2 pixels]
--- Entropy-driven Detail Enhancement
Parameter [Resolution] set to [Medium]
Parameter [Channel Selection] set to [All]
Parameter [Strength] set to [100 %]
Parameter [Midtone Pull Filter] set to [20.0 pixels]
Parameter [Midtone Pull Strength] set to [58 %]
Parameter [Dark/Light Enhance] set to [50% / 50%]
--- Psycho-Visual Grain Equalization De-Noise
Parameter [Grain Size] set to [3.4 pixels]
--- Psycho-Visual Grain Equalization De-Noise
Parameter [Mode] set to [Psychovisual]
Parameter [Grain Removal] set to [58 %]
Parameter [PV Detail Size] set to [2.0 pixels]
Parameter [Grain Limit Detail] set to [3.4 pixels]
Parameter [PV Support Gamma] set to [2.20]
Parameter [Grain Limit Color] set to [3.4 pixels]
Parameter [PV Support Area] set to [3 pixels]
--- Wavelet Sharpen
Parameter [Structure Size] set to [Large]
--- SNR-aware Wavelet Sharpening
Parameter [Scale 1] set to [100 %]
Parameter [Scale 2] set to [100 %]
Parameter [Scale 3] set to [100 %]
Parameter [Scale 4] set to [100 %]
Parameter [Scale 5] set to [100 %]
Parameter [Mask Fuzz] set to [4 pixels]
Parameter [Amount] set to [139 %]
Parameter [High SNR Size Bias] set to [85 %]
Parameter [Low SNR Size Bias] set to [0 %]
Parameter [Dark/Light Enhance] set to [50% / 50%]
File saved [C:\Users\david\Desktop\Developed images\Cygnus Loop 09July20\Cygnus Loop3Channel.Tiff].

[alacant]

hi
Lovely image

If you don't use flat frames, you can correct this in:
wipe > vignetting

Works well.
HTH,
Steve