Nice catch. I guess you could ask around. John Hotchner, former APS head, has a strong reputation working with EFO's (and not a dealer) and has written many articles about them. Stuart Katz on the dealer side.
True, but the strong light would also affect the other colors at least some, which does not appear to be the case here. Possibly the paper as well. I agree to get it expertized.
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Posted 12/12/2018 11:28 am
