See the exposure value of a shutter, aperture and ISO combination.
Exposure value combines aperture, shutter and ISO into one brightness number, comparing it against the familiar Sunny 16 baseline. Three separate controls always trade stops against each other, so an EV reference reveals when a combination is wildly off.
Exposure Triangle
EV = log2( aperture^2 x (100 / shutter seconds) x (ISO / 100) )
EV = log2( aperture^2 x (100 / shutter seconds) x (ISO / 100) ) Exposure value combines aperture, shutter and ISO into one brightness number, comparing it against the familiar Sunny 16 baseline.
Three separate controls always trade stops against each other, so an EV reference reveals when a combination is wildly off.
This calculator takes 3 inputs: Shutter (1/X), Aperture (f/), ISO. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.