Celestial hemisphere:  Northern  ·  Constellation: Camelopardalis (Cam)  ·  Contains:  NGC 2403
NGC2403 - First Light of APM barlow x1,5, Jean-Baptiste
NGC2403 - First Light of APM barlow x1,5
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NGC2403 - First Light of APM barlow x1,5

NGC2403 - First Light of APM barlow x1,5, Jean-Baptiste
NGC2403 - First Light of APM barlow x1,5
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NGC2403 - First Light of APM barlow x1,5

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Description

L : 45x3mn
R : 14x3mn
G :14x3mn
B : 15x3mn

This is the first light of the APM barlow - Comma corrector x1,5. 
The focal is then 1200mm and the sampling is 0,65" per pixel. I made a bin x2 after the integration which results in a sampling of 1,3" per pixel which seems enough given the seeing.
I never saw any article or documentation that compares the SNR gain between a bin x2 at the end of the integration or a bin x2 at the beginning of the integration with the binning performed on each unitary captured files, if you have some infos to share, it will be much appreciated :-)
I took the easy way with a "once and for all" binning (process IntegerResample of PixInsight)

With my limited experience, I found NGC2403 hard to process; like M33, I am not sure of where I want to go with the nebulosity. I made several attempts and in each of them, I was going too far with the Luminosity : sharpening too much gives a sense of "black spots spread all over the core of the galaxy"
Here, I performed a deconvolution and a bit of sharpening but I deliberatly tried to limit the sharpening effect. The same for the stars saturation : I tried to restrict myself and this is not the easy part ^^

Any feedback or advice will be much appreciated !
Clear skies

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NGC2403 - First Light of APM barlow x1,5, Jean-Baptiste