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

AF-ON half-press/full-press screen

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]

AF-ON move AF point by eye control screen

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 [Disable]

Half-press: [Metering and AF start]

Full-press: [Starting and stopping whole area tracking]

AF-ON tracking off screen

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] : [Enable]

[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.

Subject to detect screen
AF-ON screen