Quote Originally Posted by David Lyga View Post
Are there any out there who truly check films for speed using a standardized 'model' of their own making and check for shadow detail along with highlight detail?
Yes, I check film speeds in my cameras, but not with a model. I use the stop-down method with a black card, which shows me the lowest zones...then I wait for printing to find the highlights. I've found that film speeds are consistently different than their box rating, i.e. Tri-X rates at 160 in most of my cameras, although it's listed as 400. I like the idea of a model that might show more than one zone, though...I'll have to give that a shot. Interesting idea.