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Re: Filters

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Posted by Jarvis Krumbein on March 5, 2002 17:11:16 UTC

The choice between the "O-III" and "Ultrablock" filters should be determined by your use. The Ultrablock is a general use filter to get rid of sources of man made light pollution and is probably the right filter for you. The O-III is a special purpose filter which will greatly enhance certain nebular objects but is not for general purpose use.

Jarvis Krumbein,

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