Canon EOS 5Ds Instruction Manual page 181

u White Balance CorrectionN
During WB bracketing, the maximum burst for continuous shooting will
be lower.
Since three images are recorded for one shot, it takes longer to record
the image to the card.
You can also set white balance correction and AEB together with white
balance bracketing. If you set AEB in combination with white balance
bracketing, a total of nine images will be recorded for a single shot.
When white balance bracketing is set, the white balance icon will blink.
You can change the number of shots for white balance bracketing
(p.404).
"Bkt." stands for bracketing.
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