BAADER SOLAR VIEWER ASTROSOLAR ECLIPSE GLASSES
Baader Solar Viewer Eclipse Glasses are made with AstroSolar OD 5.0 silver/gold film for safe naked-eye observation of the sun. These German-made and ISO/CE-certified glasses are perfect for watching the partial phase of solar eclipses or sunspot clusters.
The optical density of OD 5.0 means they block 99.999% of all sunlight, along with providing 100% UV and IR protection. This lets you observe the sun comfortably without unwanted heating up of your eyeballs.

AstroSolar Silver/Gold safety film has no added treatments to attain fine-optical properties necessary for high magnification work. It is not suited to being used in combination with telescopes, binoculars, spotting scopes or camera lenses.
Baader has produced AstroSolar Silver Film for more than 25 years. In the year 1999, during the grand total eclipse over Europe, more than 20 million solar viewers equipped with this film were in use.
In contrast to the black, soot-filled light-absorbing films of other manufacturers, the reflective metal-layers of AstroSolar Silver/Gold Film are much more efficient at blocking the red (and especially the invisible infrared) light, and thus achieve a better security rating at the necessary optical density of OD 5.0.
Baader Solar Viewer Eclipse Glasses are available individually or in packs of 100!

Warning: Never look at the sun with your naked eye, regular sun glasses or insufficient filters! Doing this can cause permanent eye damage or blindness.
Only and exclusively during the few seconds of minutes of totality (when the sun is completely eclipsed by the moon) can you take a safe look at the sun's corona with the naked eye (see image below). Nevertheless, the complete eclipse, which lasts for hours – from the beginning when the moon touches the disk of the sun for the first time until the end, when it is completely visible again – must only be viewed through a safe and certified solar filter – the Baader Solar Viewer AstroSolar Silver/Gold.

You must use a proper filter at any time for all other kinds of solar observation, too – no matter if during a partial eclipse, an annular eclipse, or simply your daily check for large solar spots. Even if the sun is eclipsed by 99%, the remaining crescent is is still so bright that you must use a good filter.

