What do the buttons, rings and indices on the lens mean? Please refer to the diagram below: Related articles Do I have to follow the setup when I first use the camera? What does each mode on the mode dial mean? What does each icon mean in the Live View screen? What is the best ISO for different scenes? What should I do if 'Lens locked, please rotate the zoom ring to unlock' is displayed after powering on? Comments 0 comments Please sign in to leave a comment.