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Blobrana


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Solar Filters
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Eye Safety During Solar Eclipses

The Sun can be viewed safely with the naked eye only during the few brief seconds or minutes of a total solar eclipse. Partial eclipses, annular eclipses, and the partial phases of total eclipses are never safe to watch without taking special precautions. Even when 99% of the Sun's surface is obscured during the partial phases of a total eclipse, the remaining photospheric crescent is intensely bright and cannot be viewed safely without eye protection [Chou, 1981; Marsh, 1982]. Do not attempt to observe the partial or annular phases of any eclipse with the naked eye. Failure to use appropriate filtration may result in permanent eye damage or blindness!
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Do not set yourself onfire 
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Blobrana


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Amateur Astronomy For Beginners: Solar Safety

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Amateur Astronomy for Beginners: Solar Safety Part 2

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Blobrana


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A tip is to construct a Solar Filter mount with a slight slope.

filtermoubt1.gif
An annoying feature is that a 90° mounted reflective Solar filter will also reflect back an image of your eye. This will degrade the image contrast. Mounting the filter with a slight angle will remove the annoying reflection.

AngleMountSolarFilter.jpg



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Blobrana


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Baader A4 AstroSolar Solar Filter Material ND 5.0

Baader Planetariums AstroSolar safety film is a specially manufactured streak- and blisterfree foil. It attains the optical performance of planeparallel glass filters. The base material is not "Mylar". 
High density coatings on both sides of the foil ensures a highly uniform filtering, while neutralizing the occasional miscroscopic holes in the coating. The image of the sun is extremely contrasty and of almost neutral colour.

£14.95

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