Mark Wallace’s “Digital Photography One on One” Video ...
Mar 04, 2008·The short answer is, Yes. While all photographic metering systems (camera and handheld meters) are calibrated to produce a proper exposure when measuring a middle tone, for reflected light measurements, or in the case of an incident light measurement, when held in the same light that is falling on the subject, every camera and meter company has a different idea of what “middle” is.