Not stupid at all!
Ansel Adams and Jay Hannah, the painter, did extensive study. Hannah for
both Kodak and Poloroid.
Adams broke the gray tones into ten 'Zones.' and Hannah determined there
are 64 shades of gray in discernable gradations.
Does that tell why AA came up with the Zone system and his f64 theory? Yes!
In fact that's almost all of it, exactly.
Steve Shapiro, Carmel, CA
----- Original Message -----
From: "Bill William" <iodideshi@yahoo.co.jp>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Tuesday, June 08, 2004 8:07 AM
Subject: Only shades of gray...
> I hope this is not a REALLY stupid question...
> I am good at asking those,,, but
>
> Does any one know how many shades of grey humans can
> discern, between black and white?
>
> I know the answer will be a variable range, but what is
> the range?
>
> What is the maximum number possible (probable)?
>
> 30? 130? 1300?
>
> If anyone knows of any such studies, I would love to hear
> about them!
>
> Ray
> -------------------------------------------------
> I remember when the answers seemed so clear
> We had never lived with doubt or tasted fear.
> It was easy then to tell truth from lies
> Selling out from compromise
> Who to love and who to hate,
> The foolish from the wise.
>
> But today there is no day or night
> Today there is no dark or light.
> Today there is no black or white,
> Only shades of gray.
>
> The Monkees
> (lyrics: barry mann and cyntha weil)
>
> __________________________________________________
> Do You Yahoo!?
> http://bb.yahoo.co.jp/
>
>
Received on Tue Jun 8 20:36:58 2004
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