Rosette Nebula, plroberto

Rosette Nebula

Rosette Nebula, plroberto

Rosette Nebula

Equipment

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Acquisition details

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Description

Rosette Nebula from my balcony in a Bortle 7 zone.
About 2 hours of data with an Optolong L-eNhance filter

I'm having a little trouble with the stars having a large red halo around them.
This is probably due to a combination of different facts:
  • the astro-modification (LPF-2 removed)
  • some chromatic aberration of the lens
  • imperfect focus

I don't think that an additional IR-cut filter would help since I'm already using an L-eNhance, wich sould already cut all the IR.

For now I just removed the halo in photoshop, as if it was chromatic aberration, but I'm loosing all the colors in the stars

To achieve a "perfect" focus, I used a Bathinov mask , but maybe I still have to tweak the focus a little bit.

Any suggestion is appreciated, both on how to prevent the red halo to appears at all, or on how to remove it in post production.

Comments

Histogram

Rosette Nebula, plroberto