[TrevorW]

I recently did some images using my ED80 and I notice HALO around the bright stars now this effect was not present in frames I took using the ED115 however the camera setup was the same as well as exposure length. I use a IR cut filter in the camera chain when taking both images - any clues as to what may cause the HALO, thanks


1st image TUC 115ED no halos
2nd image NGC1985, 80ED halos