Quote Originally Posted by seadrive View Post
The exposure meter gives you the exposure for Zone V, so you would open up three stops from the indicated exposure to get to Zone VIII.

That's assuming you know the proper exposure index (EI) to use for your film (and to set on your meter), which is oftentimes not the same as the one on the side of the box the film came in.
Ok, the thing is that I'm testing for a pinhole camera, so instead of open up three stops I have to expose three times the exposure meters' time indicated, right?