The exposure index EI for a 35 millimeter camera is a

Last updated: 6/29/2023

The exposure index EI for a 35 millimeter camera is a measurement of the amount of light that hits the film It is determined by the equation EI 4 t where f is the f stop setting on the camera and t is the exposure time in seconds a Suppose the f stop setting is 8 and the desired exposure time is 4 seconds What will the resulting exposure index be The resulting exposure index will be EI b Suppose the light meter on a camera indicates an EI of 4 and the desired exposure time is 16 seconds What should the f stop setting be The f stop setting should be log