Quote Originally Posted by Michael R 1974 View Post
Can I replace H in the above equation with H-metered from post #2? For a 100 ISO film and a step tablet density of say 0.3, we'd have:

Illuminance at film = (0.08)(10^0.3)

~0.16 ?
Actually it's (1/10^0.3)*0.08 = 0.040