It starts out with someone stating what they think it is, but starting at post 12 and going to post 24, they develop the math behind it, and even post a script you can download that has the math behind it.
It’s someone not using a uv ir filter. The 533 window is not treated.
I respect the math and those with degrees in optics.
This camera has had a pretty big shake down here before with tons of phots. I have experience with the sensor and never had this issue running it behind an Optolong uv ir, Optolong l-enhance or Optolong l-pro.
I don’t see these issues with bright stars on the 2600 either. The 2600 does have a treated window and I typically run a triad there. 2600 is the aps-c big brother.
Sadr had halos with the l-enhance but that star does halos for just about everyone. Certainly wasn’t the blocky reflective kind of halo though.
Once weather clears up I’ll give this region a try
Edited by sn2006gy, 24 September 2020 - 07:24 AM.