Question about Optics
I have Zhumell filters numbers 23A, 82A, 21, 12, and 56. What do each of them do?
These are used to see more details when viewing the planets. Each color will help see a different feature on Jupiter or Saturn for example.
I have an entire set but never use them as they do not do much for the view.
Posted on Aug 04, 2011
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Posted on Jan 02, 2017
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