Axis

Photography

EV at ISO 100EV₁₀₀

Exposure value converted to illuminance at ISO 100.

Dimension
J/L⁻²
Canonical signature
L^-2*J
System
common
Exactness
Approximate

Definition record

How this unit is defined

Canonical base
1 EV₁₀₀ = 5 lx
Conversion type
formula
Historical notes
E = 2^EV × 2.5 lux; calibration varies between meters.
Aliases
EV100, exposure value iso 100

Same dimension

Common conversions

Every conversion routes through the canonical base of the dimension.

1 EV₁₀₀ = 5 lx

Approximate relationship

10 EV₁₀₀ = 2,560 lx

Approximate relationship