The Sky-Watcher EVOGUIDE-50ED is a premium 50mm doublet ED Guidescope, featuring Ohara S-FPL53 glass for exceptional optical quality. With a fast f/4.8 focal ratio and 242mm focal length, it ensures pinpoint sharp stars for precise guiding. Equipped with a helical focuser, T2 thread, and 1.25” socket, it offers versatile connections for autoguiders, cameras, and eyepieces. Complete with collimation rings, a 45mm dovetail bar, and multiple mounting options, it's perfect as a Guidescope, finderscope, or compact travel telescope.