Quote Originally Posted by Bill Burk View Post
Hi PeterB,

Don't take me too seriously, I'm poking fun at Bruce's enthusiasm as he makes his point that more exposure is a good thing.

When I look at my graphs, the straight line starts near my speed point (0.1 above Base+Fog).

Roughly mark the graph at 0.1 as Zone I. Mark a Zone on the graph for every other step wedge reading.

Suppose I follow Bruce and meter a dark part of my scene and place it on Zone IV. (Traditional Zone System would put on II - textured shadow). Now in my scene there would be a Zone darker (Traditional Zone I - featureless black). And a Zone darker still (Traditional Zone 0).

What I meant by my tongue in cheek comment was that Traditional Zone 0 (something two stops below my metered shadow) is going to be on the straight line portion.
I've got a question concerning the placement of the zones on the graph.

The procedure you mentioned is just as described by Ansel Adams. However, I ask to myself, why should we define all the zones based on Zone I, when the reference exposure should be Zone V?

And I have another doubt concerning the concept of Zone V. How can the meter indicate the correct exposure to produce a middle gray print if the final result depends on developing and printing processes?