Exposure value at ISO 100 from camera settings: EV100 = log2( N² / t · 100 / ISO ) where N is the aperture f-number, t the shutter time in seconds. A higher EV100 means a brighter scene (which needs a smaller exposure multiplier).
N
t
Exposure value at ISO 100 from camera settings: EV100 = log2( N² / t · 100 / ISO ) where
Nis the aperture f-number,tthe shutter time in seconds. A higher EV100 means a brighter scene (which needs a smaller exposure multiplier).