NANFA-L-- Way off topic Color vision

Bob Bock (bockhouse-in-earthlink.net)
Fri, 16 Dec 2005 09:31:24 -0500 (GMT-05:00)

Just an anecdote about something that has always fascinated me. My wife, three sons and I were on a camping trip once. It was night, and a Luna moth landed near our lantern. I said, "That's funny--in every picture I've ever seen, these things are light green. This one's white." My wife said, "What are you talking about? It is green." My oldest son also said it was white, while the twins said it was green.

-----Original Message-----
>From: Jerry Baker <nanfa-in-bakerweb.biz>
>Sent: Dec 16, 2005 1:00 AM
>To: nanfa-l-in-nanfa.org
>Subject: Re: NANFA-L-- color vision testing
>
>Mysteryman wrote:
>> After that the test taker moves on to the other samples in the series
>> which use different base colors like orange & blue, tan & cream,
>> mushroom & taupe, maroon & vermillion, yellow & red, red & green, purple
>> & green, and so forth; there are a dozen of these series. Some measure
>> differences in very dissimilar colors, and some measure acuity within a
>> more narrow spectrum, like blue to purple.
>
>The funny thing is that colorblind people are more attuned to subtle
>differences in shade. It's precisely the reason that the principle
>behind military camouflage is a mystery to colorblind kids (they can't
>figure out why everyone says it makes people hard to see when it does no
>such thing). So if you want someone who can spot the difference between
>two slightly different shades of the same color, then you want a
>colorblind person. If you want to detect actual shifts in color, then
>you don't want a colorblind person.
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