Clear all

2023-03-15: APP 2.0.0-beta14 has been released !

IMPROVED FRAME LIST, sorting on column header click and you can move the columns now which will be preserved between restarts.


We are very close now to  releasing APP 2.0.0 stable with a complete printable manual...


Astro Pixel Processor Windows 64-bit

Astro Pixel Processor macOS Intel 64-bit

Astro Pixel Processor macOS Apple M Silicon 64-bit

Astro Pixel Processor Linux DEB 64-bit

Astro Pixel Processor Linux RPM 64-bit

"hot" pixels in LRGB combine flow

2 Posts
2 Users
Main Sequence Star
Joined: 3 years ago
Posts: 25
Topic starter  


I'm using a Atik 314L+ camera on a ED80 refractor, took  some sbs the last couple nights even though the moon was full just to make sure everything was working well in SGP.


I took Lum subs at 1x1 binning and the RGB at 2x2 binning. I have darks, and flats to match all the filters. I did not collect bias frames, I will have to do that as  i did not realize they were required (Deep sky stacker never warns about this and I did not know any better, now I do:) )


When I stack everything, and then combine in RGB, I see pattern of ghot RGB pixels. It  "Almost" looks like they are just not aligned properly with the luminance frame, even though the luminance is the reference. 


Is there something obvious i am overlooking here ? 


color dots

Topic Tags
Universe Admin
Joined: 6 years ago
Posts: 5368

Did you check if the darks are actually correcting well? You can load one of your subs and the masterdark (btw, this masterdark has the bias signal as well so that’s fine, for flats they are required yes) and select “l-calibrated” on top of the screen. You can then see if the darks are applied to the sub, by looking at the list and seeing “MD or Masterdark” added to the sub and the zoom in on the sub to check if hotspots are going away. Does that work properly?