Hello! This is my first post, and I'm a complete beginner. I'd like to explain my problem using IC405 as an example. I'm having trouble preserving the blue tones and have tried various techniques. Raw data: One series with L-Pro and one with Antlia ALP-T 3nm. In image 1, I applied a luminance mask (Ha of the Antlia ALP-T data) to the L-Pro data and selectively boosted it. In image 2, I split each series with StarXTerminator and merged them according to their weighting. In image 3, I additionally applied a blue channel mask from my nebula image in image 2 to image 1 and boosted the blue tones.

I hope that was clear. How do you approach this type of object?

How do you obtain the blue tones?