How to view a solar eclipse
There is a lot of debate over what is safe and what isn't. Some methods you
may be familiar with, such as looking through the the silver part of
a compact disc, are considered potentially unsafe by Sky
and Telescope magazine.
One of the most common, and perhaps safest, ways to view an eclipse
is through a pair of mylar glasses or a pair of number 14 welders glasses.
You can use an ordinary camera -- single lens reflex camera
Filter: During partial phase, use a mylar or glass filter to
reduce brightness and protect your eyes. Aluminized mylar or
metalized glass filters are the best.
Focal length: Needs to be longer than 500 mm in focal length.
Simplest and least expensive
Poke a small hole in a piece or cardboard or index card and
hold a second piece of paper 3 feet behind it. The hole will
project a small, inverted image of the eclipse on the second
sheet of paper.
A larger hole make the image fuzzy, a smaller one is sharper.
- Never stare directly at the sun even during an eclipse.
- Use a tripod with your camera and the proper filter.
- Binoculars and telescopes should also have the proper filters.
- You can damage your eyes by looking into a camera, binoculars or telescope without the proper filters.
For more tips, click here
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