Question about Optics
Theoretically you can use eyepiece projection for solar images, by placing a screen opposite the eyepiece and focusing on it. Some telescopes come with an accessory attachment for this. However, there is the possibility that the eyepiece will be damaged by the heat, especially if it is one with cemented elements or if it has plastic parts.
Do NOT buy or attempt to use a solar filter to look at the Sun. If the filter cracks from the heat you will instantly lose your sight.
I'm not sure that I would bother with a telescope during an eclipse. You may not even be able to get it lined up and focussed in the short time available. At the last eclipse, I made a pinhole camera with a pinhole in a piece of foil placed in a blacked out window in a darkened room. The image on the hand held paper screen was good enough to photograph.
Posted on Jan 01, 2011
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Posted on Jan 02, 2017
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