DSLR Image Calibration output and Master Darks are Mono

So here you can see as well that the Dark Frame is sRGB and RGGB, but the MasterDark has been created as Gray

Mmm, so also the calibrated lights become mono? That seems a bit odd. What happens if you don’t select the RGB pattern yourself and don’t tick “force CFA”? Usually APP is able to see this automatically in DSLR Raw files. Also, what version of APP are you using?

@vincent-mod

Latest version of APP, and if I do not select any options they still come out as Mono when loaded up in PI

Mmm, I will have to look at the data then. If you can please upload some of the relevant subs to our server;

Go to https://upload.astropixelprocessor.com and use upload1 (or upload2 till 5) as username and password will then be the same as the username.

Create a directory named “stastro-monoissue” and upload in there. Thank you!

@vincent-mod Files uploaded

@vincent-mod

Did you find anything in the CR2 files?

Hi Simon,

Not yet, sorry, there have been a few busy days and a lot of comet data. Will download and investigate this evening and tomorrow will give my answer.

I found the issue, in PixInsight the images need to be de-bayered in order to show the colour information, it's totally my fault, been so used to imaging with MONO for the past few years, good job I worked it out, as I just moved to an OSC Camera 😀

One thing I have noticed though is APP does not put in what type if Bayer Matrix into the resulting files, unlike the original RAW files, if you de-bayer an original RAW file PixInsight detects it as RGGB, however a stacked image from APP does not contain the CFA information so you have to force PixInsight to RGGB in the De-Bayer process

@vincent-mod

Quick question for you, I now have my OSC Camera, when I load up a dark frame into APP, I have RGGB Selected and having the option to FORCE CFA makes no difference, but the dark frame comes up as 16b Gray with no CFA value, whereas the Master Dark comes up as 16b Gray with RGGB as the CFA Value, I am presuming this is normal behaviour?

Oh that is great and my sincere apologies for not replying sooner, it's a bit chaotic the last few weeks here. I was just about to fire up APP for your data. 😉

Regarding your dark, maybe this is because the dark frame doesn't have the RGGB data in it and for the master you told APP to use that?

Yeah it's pretty normal, I just loaded the master into PixInsight and performed a Debayer and it turned colour, plus when I see the Master being created in APP, I see it creating the colour channels albeit in a Bayered file, learned a lot about processing OSC files since the days when I used to use Nebulosity to do it all.

Thanks for your help, off to finalise collimation soon as it goes dark!

Clear Skies

Good luck!