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Digital BW, The Print

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Re: 100 Hour Direct Sun Torture Test

2008-11-10 by hjswim2@aol.com

In addition to Henry Wilhelm, I refer you all to the Mark 
McCormick-Goodhart's site at:
http://www.aardenburg-imaging.com

He's doing some very interesting work in this area.

Harald Johnson


In a message dated 11/10/08 2:53:05 PM, 
DigitalBlackandWhiteThePrint@yahoogroups.com writes:


> Now, the big question for me is what does 100 hours of direct Florida
> sunlight translate to in some other relative value, such as Wilhelm
> Years?  Wilhelm uses a test standard of 450 Lux @ 12 hrs/day to
> represent a typical environment for displayed prints.  What does 100
> hours of sunlight mean in those terms?  Ideas anyone?
> 




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