I did run some deconvolution on a synthetic luminance (combined SHO) which combined to 1.62” FWHM. There are some pretty interesting rings around the brighter stars. A single bright ring is a reflection off of the cover slip on the QHY600.
The repeating ring pattern around Eta Carina has been identified, not as the airy disk per say but a oscillating pattern caused by the airy disk that only really shows itself in narrowband filters under good seeing.
There has been some very long and heavy discussions on it over on the other unmentionable forum
