Digital BW, The Print

<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?


Regards,
Clayton>

Each hour in the direct sun is equel to, roughtly, 100,000 Lux. So, 
your test was subject to about 10 million Lux.

Museum lighting is roughly 50 Lux. If you displayed that test under 
50 Lux for 10 hours a day, the test print would have been subjected 
to almost 55 years worth of museum lighting.

However, I believe your test print was subjected to more than 10 
million Lux due to your geographic location.

Scott