Camera automatically adjusts focus according to distance to subject.
Use when subject is 50cm (1'8") or more from lens.

Camera focuses at infinity. (Focus indicator lights whenever shutter-release button is pressed halfway.)
Built-in Speedlight will not fire even when lighting is poor.
Use when shooting distant scenes through foreground objects such as windows.

If zoomed in or out until macro close-up icon in the shooting display turns green, camera can focus on objects as close as 3cm (1.2") to lens.
Use for close-up shots of flowers, insects, and other small objects.