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If you decide to enable back button focus by decoupling it from the shutter button as I have, why do you need to switch from AI Servo to One Shot. Surely BB focus provides both options. Holding BB focus is effectively giving you AI Servo, releaseing ...

Hi, need a little help please, 5D mk4. Do I need to enable/configure  autofocus in live view on the toughscreen. Doesn't seem to focus when touching the screen to focus on different objects at various focusing distances. Works perfectly on my 70D.

Hi had a look through the forum and cannot see anything that might help so have to ask for assistance.Just purchased a 5D Mk4 and loaded the latest EOS Utility 3, my macbook is running the latest version of macOS Mojave 10.14 but as soon as the camer...