← ToolBox / 色温换算 mired

🔄 Mired Color Temperature Converter

Convert between colour temperature (Kelvin) and mired values, and estimate the colour correction filter needed between two light sources.

色温 K

偏移 mired

Mired = 1,000,000 / K
K = 1,000,000 / mired

摄影滤光片常用 mired 描述色温偏移。

📚 深度解析：色温微倒度（Mired）换算

Mired 计算

3200K 钨丝灯：Mired = 1e6/3200 = 312.5；加 +100 暖调滤镜后 Mired=212.5 → 色温 = 1e6/212.5 ≈ 4706K，明显变暖。

偏移方向

Mired 降=色温升（偏蓝冷），升=色温降（偏橙暖）；校日光用减 Mired 蓝镜、校钨丝用加 Mired 橙镜。

Item	Formula / Rule	Source / Standard
Conversion	M = 10⁶ ÷ T in kelvin, and T = 10⁶ ÷ M	CIE 15:2004 Colorimetry, 3rd edition
Typical values	Daylight at 5500 K is about 182 mired and tungsten at 3200 K about 312 mired	ISO 7589:2002 Photography — Illuminants for sensitometry
Filter shift	Colour-correction filters are rated in mired shift, where about 10 mired corrects a slight cast	CIE 15:2004 Colorimetry, 3rd edition