The Starizona 0.63x SCT reducer and corrector is a phenomenal piece of equipment for demanding tasks on SCTs, such as deep sky astrophotography with large total integration times. It both decreases the focal length as with a standard reducer, while also flattening the field by eliminating the coma and other optical imperfections present with SCTs in particular. Although this thing isn’t cheap, I found great success with it. The most noteworthy aspect was how it didn’t introduce heavy gradients such as with the cheaper Antares reducer I used to use. This leads to Continue reading “Starizona 0.63x SCT Reducer & Corrector” →