What is the custom setting of white balance control?
When a subject is illuminated with many different types of light sources, the existing white balance controls may not be able to reproduce color accurately. In this type of situation, use the custom white balance function. Place a white reference (or neutral grey reference) within the scene you are shooting for WB calibration so that the camera is able to perform proper custom white balance and to reproduce colours of the main subject accurately. Note: A new Custom White Balance has to be performed even for little changes of the scene or of the lighting conditions. As the visual system of humans adjusts white balance quickly, changes in colour temperature are unlikely to be noticed by the photographer, but the camera will show the changes clearly.