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Observing the Sun in H-Alpha is a lot of fun with these compact SolarMax III telescopes! The integrated 'True' Etalon filter provides higher contrast and a sharper image than other solar telescopes with smaller filters. SolarMax III telescopes have an improved focuser with micro focusing and other high-end features. The filters can be removed from the Solarmax III, allowing the solar telescope to also be used as an achromat for nighttime observations. The Sun becomes invisible at a 656 nanometer search - known as H-alpha - and shows an always active sunspot and prominences at the edge of the Sun. There is always something to see on the Sun in H-alpha!!