
Many places sell them but I like using Astronomics for most my telescope aids and accessories : Astrozap Focusing cap w/ built-in Bahtinov focusing mask for 9.25" SCTs and.

If you don’t have one I suggest using a Bahtinov focusing mask, that is your greatest helper with scopes or lens for night sky captures. Even tho I don’t like to mention other programs I will say Pixel Insight is a great astroimage program once you learn the curves. However of all the software Topaz makes I have found that Topaz Clarity and Detail are the only programs I will use on astronomy images, the rest I do with PS. Your images look good especially the moon in clarity but myself I prefer the moon to be brighter in exposure. Since you know that air turbulence is such a big factor you know that perfect focus is the only thing that will make planets look their best and AT if bad will not allow perfect focus or sharpness.

How long have you been doing amateur astronomy ? The 9.25" is one of the best OTAs’ for planets.
