Response to "Latitude for B/W films"

When shadows contain no detail, I would say you are at or very near to underexposure. The "latitude" you experience with a film will depend somewhat on how you meter and process that film, i.e. where you place your densities on the curve. I tend to meter and process in a way that gives very little latitude. If I want to be extra safe, I overexpose by a stop, giving an exposure that might seem no more than normal to someone else. Maybe a more technically inclined correspondent can give a more scientific answer to your question.

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