Canon EOS-1D C EOS 1D X Instruction Manual - Page 98

3 Customizing AF Functions : 15 points Fifteen main AF points will be manually selectable. : 9 points Nine main AF points will be manually selectable. With a lens from groups F to H (p.80-82), the number of manually selectable AF points will be fewer. Even with settings other than [61 points], AF point expansion (Manual selection ), AF point expansion (Manual selection, surrounding points), and Zone AF (manual selection of Zone) are still possible. When you press the button, the AF points that are not manually selectable will not be displayed. Select AF area selection mode You can limit the selectable AF area selection modes to suit your shooting preferences. Turn the dial to select a selection mode, then press to append a checkmark . Then select [OK] to register the setting. : Manual select.:Spot AF For pinpoint focusing with a narrower AF point than Single-point AF. : Manual selection:1 pt AF One of the AF points set by [Selectable AF point] setting can be selected. : Expand AF area: The camera will focus with the manually-selected AF point and the adjacent AF points (above, below, left and right). : Expand AF area:Surround The camera will focus with the manually-selected AF point and the surrounding AF points. 98