Light Pollution Filter Shootout

Comparisons of crops of the Cygnus Wall

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  1. This is a great review and I had been racking my brain to figure out what or if I should buy a filter. I was looking at Optolong L Pro. At $200 its an expensive filter and after seeing your review and reading it here on your site, I am going for Baader. Thanks for putting in the time and effort putting all this together.


  2. Great review.
    Can I ask if the images were straight out of the cameras?
    How did you achieve white balance on the 5D images?

    1. The images are not straight out of camera. They were calibrated, registered, stacked, and minimally processed. Some tech details appear in the upper right of each graphic on this page. Let me know if anything is confusing or needs further clarification.
      White balance was set to daylight on the 5D, I then used a process called Photometric Color Calibration (available in PixInsight or the free Siril program) on all samples. Photometric Color Calibration uses the colors of known stars in the photo to set white balance for the whole photo. It is much more accurate than any other method, and I think a good way of putting the filters on equal footing when it comes to color response.

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