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meteoptic-l [ät] ursa.fi
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>Unless one regularly looks directly at the sun and wears
> extremely dark sunglasses (like I know Brian Skiff
> does), the solar counterparts, though no doubt often
> present, are practically unobservable due to the sun's
> intensity..
Can members recommend safe glasses, filters or other means for
observing coronae - i.e that block IR and have appropriate
neutral colour visual transmission.
Les Cowley
aad74_at_dial.pipex.com
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