Mired

Color temperature in K

Color temperature in mired

Mired (short for English microreciprocal degree ) is a unit of measurement for color temperature . The relationship
between Mired and the other commonly used unit, Kelvin, is as follows:

${\displaystyle {\text{Farbtemperatur in Mired}}={\frac {10^{6}}{\text{Farbtemperatur in Kelvin}}}}$

Example:

${\displaystyle {\frac {10^{6}}{3400\,\mathrm {K} }}=294\,\mathrm {Mired} }$

In practice, Dekamired is mostly used, 1 Dekamired is 10 mired.

In photography , a mired value or a mired shift factor specifies the shift in color temperature caused by conversion filters . So z. B. the effect of a full orange filter from 6,500 to 3,200 Kelvin a mired value of +159.

${\displaystyle {\frac {10^{6}}{3200\,\mathrm {K} }}-{\frac {10^{6}}{6500\,\mathrm {K} }}=159\,\mathrm {Mired} }$

Changes in color temperature are more clearly perceptible to the human eye in low color temperature ranges than in high color temperature ranges: at a color temperature of 6000 K, a deviation of 100 K is practically imperceptible, while the same deviation is seen as a clear color difference at a color temperature of 3000 K. Since the unit Kelvin does not take this non-linear color perception into account, the unit Mired is usually used instead in photography.

Example:

Change in color temperature	Mired
4000 K - 3000 K = 1000 K	83 Mired
7000 K - 6000 K = 1000 K	24 Mired