This simple dial calculator helps you estimate the lighting conditions and calculate the correct settings for your film speed. Once a common tool before the advent of electronic light meters.
How to use:
Estimate the EV light levels using the notes on the back
Set the dial on the front so the selected EV and the camera’s film ISO are aligned
Read off the shutter/aperture pairs on the other side of the dial
This simple dial calculator helps you estimate the lighting conditions and calculate the correct settings for your film speed. Once a common tool before the advent of electronic light meters.
How to use:
Estimate the EV light levels using the notes on the back
Set the dial on the front so the selected EV and the camera’s film ISO are aligned
Read off the shutter/aperture pairs on the other side of the dial
