2022-05-29: APP 2.0.0-beta2 has been released !
Release notes
Download links per platform:
windows 2.0.0-beta2
macOS x86_64 2.0.0-beta2
macOS arm64 M1 2.0.0-beta2
Linux DEB 2.0.0-beta2
Linux RPM 2.0.0-beta2
Hi Folks,
First time poster on the APP forum. I noticed that my MasterDark frame has a vertical band along the left hand side of the frame that is not present in my dark subs or bias subs. This is occurring with the default settings and I can reproduce it by loading just 1 dark frame (no bias, flats, or lights) and running the calibration to generate the master dark. I'm not sure if I'm doing something wrong and I cannot get rid of band.
I've attached jpgs of both the master dark frame and the original dark after applying a DDP stretch (30% BG, 2 sigma, 0.0% base) to both. I'm using a Canon 6D and the dark is 450 Seconds long.
Thanks!
-Bret
Hi Bret and welcome to the forum,
That band is a bit odd indeed, I think it's best if you could upload your calibration data to our server for me to check out (if possible).
Go to https://upload.astropixelprocessor.com and use upload1 as username and upload1 as password.
Create a directory named “bstott_98-darkband” and upload in there. Thank you!
Files uploaded ... thanks for taking a look!
No problem, I'll have a look tomorrow as the evening is getting late. 🙂 Did you notice an issue when using the masterdark on your lights btw?
Doing a full calibration w/ 31 lights, lp reduction, and an extreme stretch, it's barely visible ... maybe ... it's difficult to tell if it's the dark band or due to the edges of the light frames after stacking.
-Bret
Hi Bret,
So would it be possible to add like 10 dark subs to your directory? Just so I can check if it does the same here. On your integration it doesn't seem to have a great effect if at all, what happens if you take out the dark and only use bias and a BPM?
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