In the advanced exposure modes p tv av m b c1 and c2 you can hold down this button to accomplish the same goal as pressing the shutter button halfway.
Canon 80d shutter button.
Camera top right 1 shutter release button.
If no other button is pressed the meter goes off after six seconds.
Up to you but i like the last option.
It s theoretically possible for a shooter to have conventional canon ae.
Simply stated with most eos dslrs the meter is activated by pressing the shutter button halfway down or by pressing the rear ae lock button.
Focus and keep the shutter button pressed halfway to track your subject.
The camera will continue shooting until you release the.
Press and hold the shutter button down fully when you re ready.
Camera shutter count free shutter count how to check canon shutter count and why it matters pixsy.
If you re nervous about pressing the shutter halfway on your eos 80d for fear that you ll accidentally take a photo you might want to acquaint yourself with the af on button.
Lightly pressing the button halfway first will lock the focus and exposure and then the rest of the way will take the picture.
Half press for metering only fully press for start stop mov rec which starts filming when you press the shutter button in movie mode conclusion.
Eos 70d a review of conventional ae lock.