There are 3 focus modes to choose from in Sony A7R: autofocus, manual focus, and Direct Manual Focus (DMF). Autofocus focuses the lens for you, and manual focus puts you in full control. Direct Manual Focus is a hybrid of both: When you’re in this setting, press the shutter button halfway to engage the autofocus; once the camera grabs focus, you can then rotate the focusing ring on the lens to ensure accuracy.
If you are using autofocus, you can press AF/MF to switch from AF to MF.
