The TEC 110FL, f/5.6 oil spaced triplet refractor. This design uses the CaF2 fluorite for it’s internal optics that provides excellent color correction. Attached is my home made OAG, the S-BIG St-i guider, the FLI CFW 5-7 filter-wheel and the FLI-PL16803. This gives me a FOV of 200 x 200 arcmin. Also attached is the Baader Sky Surfer V red dot finder and the Optec FocusLynx DirectSync focuser. This is all sitting on an Astro-Physics 1200 GTOCP4. This is my current Wide-Field setup. . .