I recently acquired a superwide lens that has the expected amount of light fallo ff--I'm guessing as much as two stops from the center to the corners. I'll be at tempting to compensate for this in printing when necessary. I'm wondering, howe ver, about the proper way to deal with falloff in calculating exposure and devel opment. As an example, today I was shooting a scene that had shadows around the edges of the frame, which I placed on Zone III, and highlights near the center, which fell on Zone VIII. Is my calculated exposure (based on the Zone III plac ement of the edge shadows) correct, or do I have to increase it two stops? If I need to increase exposure (or even if I don't, come to think of it), wouldn't I also have to do an N-2 developemnt (assuming the scene was N to begin with). T his suggests that a rule of thumb with superwides might be to increase exposure and decrease development time. Is this right?
Thanks for any advice.