Hi Gary,
Nice heads up. Sorta confirms what most Pros say about using filters for
protection.
To show my ignorance; what is a Vertical Autocollimator and how does it test
filters.
Thanks,
Buddy
-----Original Message-----
From: Gary Reese
Subject: [OM] Autocollimator tests on filters
. .here are Vertical Autocollimator tests of 43 different filters.
Only 3 filters passed inspection, which is about a 93% rejection rate.
My conclusion: marketing has really pulled the wool over many people's eyes.
Gary Reese
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