The Personal Solar Telescope (PST) is a Coronado innovation. The world's most popular telescope to observe the Sun. This 40mm diameter highly portable dedicated solar telescope features a superior 0.5 Angstrom bandpass for increased surface detail. Study of the solar disk is now within the reach of the amateur astronomer.
The PST will show you the dynamic, ever changing prominences at the edge of the Sun as well as filaments and other surface details in amazing detail, all in the brilliant and distinctive red color of hydrogen-alpha (Ha) light.
Features an easy to use built in solar viewfinder, a 40mm diameter dedicated Ha optical system with 40mm external tunable etalon, 30mm internal Etalon primary blocking filter and incorporated focuser and bandpass fine adjustment controls, 400mm focal length, f/10 focal ratio, with Kellner 20mm eyepiece.