Canon EOS 80D Instruction Manual page 202

Auto Exposure Bracketing (AEB)N
During AEB, <A> in the viewfinder and AEB range will blink.
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If the drive mode is set to <u> or <B>, press the shutter button three
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times for each shot. When <o>, <i>, or <M> is set and you hold
down the shutter button completely, the three bracketed shots will be
taken continuously and the camera will automatically stop shooting.
When <Q> or <k> is set, the three bracketed shots will be taken
continuously after a 10-sec. or 2-sec. delay.
You can set AEB in combination with exposure compensation.
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If the AEB range exceeds ±3 stops, the end of the exposure level
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indicator will display <I> or <J>.
AEB cannot be used with flash, bulb exposures, or when [Multi Shot
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Noise Reduction], [HDR Mode], or a Creative filter is set.
AEB will be canceled automatically when you set the power switch to

<2> or when the flash is ready to fire.
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