Baader Planetarium Baader AstroSolar Sun Solar Eclipse Sunglasses, 1 Pair

AstroSolar Silver/Gold Film has been specially developed for visual solar observation at zero magnification for use with solar viewers. This film is only being used for production of Baader's Solar Viewers. The optical density of Solar Viewer AstroSolar Silver/Gold is OD 5.0. The Solar Viewers are CE-certified and comply to the Norm EN ISO 12312-2:2015 - thus they are certified for a safe and direct observation of the sun. Baader AstroSolar Silver Film has been produced for more than 25 years. In 1999, during the great total eclipse over Europe, more than 20 million solar viewers equipped with this film were in use. For the great American solar eclipse in 2017, Baader now introduces its successor: The Solar Viewer AstroSolar Silver/Gold, with eye-sided reflex-free material for an excellent viewing experience. A single layer of AstroSolar Silver/Gold Film provides a perfectly sharp and energy balanced solar image - including the ability to identify large sunspots. This is done without transmitting irresponsible amounts of infrared (heat) radiation as with simpler sooth-filled energy absorbent films which do not offer added IR-blocking by metal reflective coatings. Due to the dual side metallization process designed for AstroSolar Silver/Gold Film, the film remains safe for looking directly at the Sun even if the front side of the viewer is scratched or lightly damaged. It is important, though, that the solar viewers are always thoroughly inspected by the user to detect possible damage due to mishandling and must be discarded if defects are found.