Without the 1960 change in the light source temperature the ratio would be 8X. The ratio for transparencies is 0.8X. It's about exposure placement based on the desired results and with black and white negative films that would be the shadows. If you want something to be curious about, consider the convenience of a density 0.10 over Fb+f for a speed point. Wouldn't that be a lot easier to find than something based on some fraction of the gradient?
Originally Posted by Bill Burk
Last edited by Stephen Benskin; 05-10-2013 at 09:45 PM. Click to view previous post history.