5-3 Using AF-ON Button Two-Step Press
The two-step AF-ON button can be customized for half-press and full-press operation for a variety of uses
The EOS R1 now features a two-step AF-ON button for the first time. Half-press and full-press functionality can be customized for changing operations so you can maintain AF without moving your finger.
You can also choose from seven presets (setting 1 - 7) for combining functions to both half-press and full-press. This section shows three such examples.
Settings can be configured separately for still and movie shooting.
<AF-ON> button usage example 1: Temporarily using eye control
[Customize buttons for shooting] [Shutter butt. half-press] : Set [Metering and AF Start]
Setting 6
Half-press: [Metering and AF start]
Full-press: Switches from [No function] to [Move AF point by eye control]
If you want to temporarily use eye control, you can move the AF point by eye control when fully-pressing the button to quickly switch from the subject to the main subject.
<AF-ON> button usage example 2: Temporary tracking
Setting 5
Set [Whole area tracking Servo AF] to [Off]
Half-press: [Metering and AF start]
Full-press: [Starting and stopping whole area tracking]
Switching from a half-press (tracking or AF frame lock) to full-press allows you to start and stop tracking each time the button is pressed.
<AF-ON> button usage example 3: Temporary spot detection
Setting 7
[Whole area tracking Servo AF] : [On]
[Subject to detect : Vehicles] [Spot detection: Disable]
Half-press: Metering and AF start for normal tracking of vehicles
Full-press: Register and recall shooting function [Spot detection: Enable]
Spot detection is only used for full-press.
