Digital BW, The Print

Scott,

Fading does not just depend on light, it also depends on airflow over the 
print, and the concentrations of oxygen, ozone, etc, etc in the air. So you 
need to specify all these things for a controlled fading test. And for 
light, you need to specify the wavelenths and amounts of each. Best to leave 
that to people like Wilhelm who have the equipment and facilities to measure 
and control all these variables, and just do simple ABC comparisons under 
the same conditions, as Shilesh did.

Bob Frost.

----- Original Message ----- 
From: "scott_now_coming" <scott_now_coming@...>


Shilesh measured the fading, just not the amount of light the test was
exposed to.

That's what's really needed.