Converter Usage I created this because my Lee Big stopper, like most high-density ND filters isn’t quite neutral, but has a predictable color shift so it can be compensated for easily if you know the correct color temperature for a given scene. The technique has two parts. First you must build a “profile” of your [...]
Calculator for depth of field and equivalent lenses on various camera systems.
Calculate the mired difference between two light sources. Calculate the filter necessary to convert from a light to a given color temp film, or to correct for another filter.
Calculate the minimum resolution required for a print at a given print size and viewing distance.