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Re: [OM] Autocollimator tests on filters

Subject: Re: [OM] Autocollimator tests on filters
From: Joel Wilcox <jowilcox@xxxxxxxxxxxxxxxxxxx>
Date: Sun, 05 Mar 2000 11:29:46 -0600
At 11:22 PM 3/4/2000 -0800, you wrote:
>Some months ago I tested the filter sets I use on a regular basis.  I
>threw out the rejects, but here are my passed ones:

snipping long list of tested filters

Gary,
Tell me if I'm thinking correctly about the data in your posts about
filters. Of the filters you've tested that "pass," the Hoyas and Vivitar
VMCs seem to have some odds-on advantages of passing muster, but the real
gist of it is that the disappointing effect of sample variation would
dictate either testing each specific example that one might use, regardless
of brand, or just not using filters at all.
 
Joel Wilcox
Iowa City, Iowa USA

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