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Conversation Between Pete_XL and dakight
Showing Guestbook Entries 1 to 2 of 2
  1. dakight
    11-27-17
    dakight
    Hi Pete. That gradient you're seeing is a combination of vignetting in the telescope and the severe levels of light pollution. I live in a red zone, Bortles 8-9. Naked eye viewing here is limited to somewhere around magnitude 4 or 5. My raw images have a pinkish cast with dark corners. I'm not sure what I can do about it other than install a LPR filter.
  2. Pete_XL
    11-26-17
    Pete_XL
    P.S. David, I just looked into your recent thread that shows that same type of radial gradient also in the Orion Nebula image where it appears blue due to your processing. I would strongly recommend to find out the reason for this gradient and eliminate it if possible.


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