Mike Coslo wrote:
Well Richard, have you not heard of the famous aperture mask?
Reduces the aperture of the telescope, and there are people that swear
by them!

And, they don't work either.

Mine works well to reduce the light from the moon to a comfortable
viewing level for my 18" diameter reflecting mirror.
--
73, Cecil http://www.qsl.net/w5dxp



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