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31 July 2020 - Comet Registration video tutorial using APP 1.083-beta1 released.

30 July 2020 - APP 1.083-beta1 has been released introducing Comet processing! This 1st beta has comet registration. The stable release will also include special comet integration modes.

9 July 2020 - New and updated video tutorial using APP 1.081: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse ( and Mabula Haverkamp

2019 September: Astro Pixel Processor and celebrate a new Partnership!

Erroe using Normalization  


Red Giant Customer
Joined: 5 months ago
Posts: 56
September 23, 2020 16:16  

I have been using the processing flow offered by @ahbok a couple years ago which is done using a L-eNhance filter to shoot Ha and OIII, also using an L-Pro to shoot the RBG, all with a OSC ASI1600.

I can split the RG and B along with the Ha and OIII, get all the way to normalizing the 5 images and get this error


I guess I need to know if the workflow I am using is incorrect and causing this error or if there is another reason.