If you've read our post as to why you should switch to back button focusing, you are ready to make the jump and change your camera settings. Below you will find the quick and easy steps to set up back button focusing on your Canon camera.
Here's how you would make the change on a Canon Camera:
1. Go into the menu
2. Scroll over to the custom controls section
3. Choose AF-On Button and select AF-On Metering and AF Start (press ok)
4. Select the shutter button and move the dial to metering only.
4. Now go shoot!