White balance is an interesting setting for digital cameras. When shooting portraits the photographer is sure to want the colors true. This is a setting of “custom” white balance.
Gary Fong has posted a video to YouTube giving visual instruction of how to set you Canon 5D custom white balance. Custom white balance Canon SLR settings are not complicated to adjust.
If you do not have the tools for setting your white balance that Gary does, a white card with true black and 30% gray sections are perfect for the same use.
There is only one difference to remember as you set the white balance…instead of letting the light come through the dome as Gary demonstrated, simply hold the card next to your subject and take a picture of the white section (making sure to have your memory storage in your camera whether internal or CF or SD).
I mention the memory card because some photographers will automatically transfer the images to a computer or hard disk and not in their camera. When this is done the camera cannot reference the photo for color imbalances.
Enjoy, and keep the colors true!