UPDATE FROM MABULA
I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
Hi mates @mabula-admin and @vincent-mod
Neutralized background in tool 5) is usually checked by default.
Even if i usually do a complete and precise "remove light pollution", that includes remove background, do i have to leave it checked or unchecked ((in 5) Normalize)?
Thanks
Andrea
Hi Andrea,
You can leave it checked, but calibrating the background later on (tools menu) is important as it might supress nebulosity a bit in the background if you don't do that.
 it might supress nebulosity
Does bold red "it" refer to background calibration in 5) Normalize?
Is background normalization in tools menĂ¹ already applied? Remove light pollution tool included background normalization, right?
You're doing it right yes, IT meant "neutralize background" in the normalize tab, 5. Because that might (might) lower the amount of signal in the background a little bit, "calibrate background" later on is adviced to always do as well.
Thanks @vincent-mod.
So between all 3 background calibrations, i usually skip the 3rd one, because it is included in the 2nd one: right?
No, that is a different proces from removing the light pollution tool.
@vincent-mod
So i understand that is better to apply all 3 background calibrations in order, always.. right?
Adviced yes, though you might skip 1 if you have a lot of very faint nebulosity in the background and already very nice data from dark skies for instance.
@vincent-mod
Fot a better understanding: is Background Neutralisation (=WB for the sky based on all data) the same as Linear fitting in Pixinsight? And background Calibration would then be the BackroungNeutralization-process from Pixinsight (=WB of the sky based on selected parts of the data)?Â
Is it correct if I put it this way?
I must say I don't know the details of the PI Tools, but they are similar-ish processes indeed. Likely they do use different algorithms.
