Originally posted by jlpk007 what is the function of this.......my cam will ask me to shoot at a white surface then after shooting it sort of save some setting....
Sounds like instructions for setting a custom white balance.
Just follow the instructions to set the white balance and select it to use it.
It is used to correct for colour casts when you are in a situation when the predominant lighting(or flash) exhibits a strong colour cast which you want to remove.
