Background neutralization (mosaics)

I ususally use these settings for mosaics:

- Stars count target: about 2000 stars
- Dynamic distortion correction: on (off when you see artifacts in the result)
- Same camera and optics: off
- Scale start: 5. scale stop: 10 (depends on the panel overlap)
- Registration mode: mosaic
- Normalization mode: advanced
- LNC: on, MBB: 5-10% (depending on the overlap %)

And these usually work very well, you can try these and check again and if it still produces weird normalization, I'm expecting a data issue somehow and we can look at that.

Thank you for your answer!

I have all these setting you mentioned too, but same camera and optics enabled, because I have truly same camera and optics all of my frames/panels. Registeration works without error messages so I have thought that my problems won't relate to settings in tab 3 and 4. I think that I have also tested with same camera and optics disabled, but I'm not sure.

Are there other things that should be mentioned? Or does it matter which one of panels/frames is chosen to reference frame? 

No that shouldn't matter. Same camera and optics should be off for a mosaic, because technically (for APP) the FOV and such are now different due to it being a mosaic.

Thank you, but unfortunately Same camera and optics: off -setting didn't help me. Result was almost same. (maybe less stretched now)

Ok, and those 2 panels, are they captured differently in some way? Like less overall exposure time? What you can also try with the above result is to do a Light Pollution correction. Put a few boxes in the areas with no or as little nebulosity as possible and see if that corrects the dis balance.

@vincent-mod 

There are 3 or 4 panels darker than others. I started imaging from right bottom and went row by row right to left. So first, second, fifth and maybe ninth panel (right side, second from top) is darker than others. Imaging went without delays and systematic using Asiair. Same settings, exposure times etc.

I also tried light pollution tool but without great success. But my question: is there something wrong in my process? Settings or way to take photos? Do I need background sky to every panel for more succesful normalization?

That's why I'm asking those questions. 🙂 I'm not sure if you do. Would you mind sharing part of the data? Maybe I can see better if something is different. Like 10 frames of all types you have (light, dark, bias, flat).

@vincent-mod 

Now these files are uploaded. Including 10 x flats, dark flats, darks and bias frames and all the panel frames (16).

Thank you for help!

Thank you, please allow for 1-2 days for me to process

Did you find any reason/solution to this problem?

Not yet sorry, been a bit busy with life. I'll have a look today!

@vincent-mod hello, I have two RGB .TIFF files that I am trying to make a simple mosaic. When I click start registration it says No Lights available, so nothing to do. 

The two files are in the tray at the bottom of the program. I dont know what I am missing 

Hi Malcolm, @malcolmpark1

That occurs because the 2 files are not loaded as lights, you need to make sure that in the frame column of the frame list panel, it shows light and not integration for example 😉

Mabula

thank you!

great software, the free trial being fully functional is most helpful in trying it out. 

I think you have a new customer 🙂  

cheers

Hi Malcolm @malcolmpark1,

Thank you very much for your nice compliment, that is highly appreciated !

Cheers,

Mabula