was reading up on the zone system for and read myself into a confused conundrum!
my understanding of the zone system is where you find a scene you like, it, and determine where you want you shadow zone to lie, then determine where the highlights lie then develop for which zone you want the highlights in/which zone they fall in.
for example, say i came across a scene, metered the shadows at zone V, say 1/60 at f/5.6, i want them in zone III, so to expose for zone III i'd use 1/250 at f/11, then I'd determine the zone the highlights fall in, say zone VII.
I think that's right, though here's where i get a little unsure..
at zone VII it is 4 above zone III. A normal development time is for 5 difference between shadows and highlights. putting my zone VII highlights into a N-1 category.
So in order to develop my film, i would take a normal development time and reduce it.
though i forgot where i was told this, but for N-1 highlights, I should reduce my development time by 20%???
Am I correct in saying this? or am I completely left field???