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.
This is an attempt to present an alternative to the normal view of “resolution” by looking at how diffraction impacts the maximal resolving power at a given aperture.
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.