Quote Originally Posted by Aggie
do you have a good light meter and a tripod? If you do, yes definitely rate the film ISO lower to the 50, and shoot at F16 or F22. Then see what the meter readings tell you. If it is 5 or more stops difference I would do a plus development of the film.
Give over a stop more exposure, and you want to give plus development? Methinks you meant N- development, yes?