“Mister T” is the simplest and most popular of my products.  Most amateur astro-photography is done with DSLR cameras, and most of them are Canon EOS type (EF or EF-S mount).  To attach such a camera to a telescope requires some kind of adapter and for that we turn to the old concept of the “T ring”.  The T ring was developed long ago as a way for 3rd party lens manufacturers to produce lenses that could be used on many different kinds of cameras by standardizing on a simple threaded connection on the lens (“T threads”), and reducing the […]