I haven't brushed up on the zone system in a while but I thought that detailed shadow areas were generally placed on III. By placing them on IV aren't you effectively adding additional exposure? In other words, wouldn't you get the same results by rating at EI 25 and placing your shadows on III?Originally Posted by c6h6o3
I'm curious because I started this thread wondering if anyone else found that Efke 100 needed fairly extreme ( over 1 stop) ISO adjustments to expose properly. Do your other films generally expose at their marked speeds?