Color Balance and Noise with Digital Cameras:
All Crops actual-pixels

 

4100° K = 244 mireds (measured) [histogram]


+130 mireds = 2670° K (B+W KR12) [histogram]

-130 mireds = 8800° K (B+W KB-15) [histogram]

 

4100° K gray-balanced using patch #8


2670° K, gray-balanced using patch #8

8800° K, gray-balanced using patch #8


Gray-balanced crops from above —considerably brightened
4100° K
2670° K
8800° K