HOW IT IS CALCULATED
Calculate EV100
Aperture, shutter and ISO combine into exposure value
Instant resultClear formulaRuns locally
01Values
02log₂(N²/t) − log₂(ISO/100)
03Result
Aperture, shutter and ISO combine into exposure value
One stop represents a doubling or halving of light
Equivalent exposure settings can trade aperture and shutter while preserving exposure.
02
In short
What logic does the calculator use?
log₂(N²/t) − log₂(ISO/100)
Example?
Aperture, shutter and ISO combine into exposure value