I apologize, I cannot utilize this tool, because I don’t know it. Please let me a little bit of time for learn it. Tomorrow? Thanks
Hi. I apologise because I had to leave yesterday. I saw that WeTransfer is very easy to use. It still takes four hours to upload the files. As soon as I get the link I will send it to you. Thank you.
Only one file is needed
Désormay, le transfert de tous le deux fichiers est en cours 
Ok, je t’envoie un seul fichier pcc.
We don’t need the corrected image.
There are two main problems with this image:
- the background level is huge for the three channels, something is wrong with that
- the flats did not correct the three channels in the same way, making the image sides different colours, so the PCC cannot do anything
I presume it is that one …
BTW: its name in my mail box is ‘pp_Light_00001 pcc.fit’!
- I did background extraction on RGB frames after PCC …
- Why image is not three channel equally BKG corrected? I tried to make manual CC too, just on same images and all is gone ok …
Color correction is done before bkg, in pp- files: only PCC doesn’t work, but manual CC do the task correctly
I don’t make flats, never, only biases
SOLVED!
Summary:
In some video tutorials it is indicated to do PCC already on PP_ files, while the Siril official tutorial clearly says correct task is to do PCC on BKG_PP files.
The first method (correcting PP_) only works with manual colour correction, NOT with photometric one: it REQUIRES that the files have already undergone background extraction.
Thank you Vincent for your great patience!
Résumé :
dans certains tutos vidéo, il est indiqué d’effectuer la PCC sur les fichiers PP_, alors que le didacticiel officiel du Siril indique d’effectuer la PCC sur les fichiers BKG_PP.
La première méthode ne fonctionne qu’avec la correction manuelle des couleurs,
tandis que la correction photométrique EXIGE que les fichiers ont déjà été soumis à l’extraction du fond ciel.
Merci Vincent pour ta grande patience !
Siril version 1.2.1 solved the issue.