Matching Shots - The Art and Technique of Digital Color Correction - page 367

Fig. 9.9 Secondary correction, pulling added warmth out of the sky.
Fig. 9.10 Data from Secondary room.
than black, a middle gray, a slightly-higher than middle gray, something
approaching white and then white. If you can get 16 steps of gray into
an image, you're doing a great job . . . or at least my buddy Ansel Adams
said so,” Leffel jokes. “I still use the Zone System every day. I'm really
surprised that I do, but I come from printing photographs and the mark of
a good printer of photographs is tonal separation. If the creative direction
is to eliminate it, then of course that's what you do, but as a base way to