Quote Originally Posted by Stephen Benskin View Post
...If the EI was left at the ISO and an average scene was shot without exposure compensation, flare would bring the shadow exposure up to around 0.10 density.
This is about what I figure as well.

Unless one's development chemistry and processing technique don't reach full potential speed. I forgot to emphasize that in my list of factors. If you don't get full speed, then you shouldn't rate your film at full speed.