Quote Originally Posted by MattKing View Post
I've been thinking about how the spectral sensitivities compare between human vision, black and white film and various types (Selenium, CDs, Silicon, Gallium etc.) of exposure meters.
The only comparisons that are meaningful are between the film sensitivity curves and those of various exposure meters.

While the meter sensor technology has a major impact on its spectral sensitivity, it does not define same.
Meter manufacturers incorporate filters to modify the sensor response, in an attempt to duplicate that of film.

For a meaningful analysis you need to obtain the sensitivity curves for the actual meters (make and model) of interest,
and compare those with the curves for the actual films.

- Leigh