Coronado Personal Solar Telescope

Coronado's iconic Personal Solar Telescope (or PST for short) is an incredibly portable way to view the sun in hydrogen-alpha light, capable of sitting on top of even modest photo tripods. The Sun's got a lot going on, and the PST will show it to you. By zeroing in on the far end of the Sun's visible light spectrum — the hydrogen-alpha line — the PST reveals our closest star rolling with violent, ever-changing activity. Best of all, the PST's innovative design allows H-alpha solar viewing at an incredibly affordable price. Designed and Manufactured in North America. This compact 40mm f/10 refractor (400mm focal length) houses a special 30mm internal filter called an etalon, which transmits only the primary wavelength of light emitted by hydrogen at 6562.8 (Å) in the solar chromosphere, where all the action occurs. A very narrow bandpass around that wavelength of less than 1.0 Å allows the viewing of surface features and activity that get washed out with wider-bandpass filters. The Sun