The second advance enabling automatic fill flash is automatic focusing.

Next, an external flash unit and to learn how to use fill flash.

Also improved was the use of fill flash at slower shutter speeds and wider apertures, by enabling lower-power illumination modes on modern Metz equipment.

It also will provide flawless fill flash when the camera thinks it would be useful.

Evenly balanced fill flash, at a 1:1 ratio, can look pretty artificial; whoever happens to be in the foreground looks pasted into the scene.

That's called a fill flash, and is very useful when shooting people outdoors, too.

A fill flash may be used with a backlit subject to yield more even lighting.

Huge screen icons confirm that you have turned on the fill flash, the macro mode or the self-timer.

To use fill flash, the aperture and shutter speed are adjusted to correctly expose the background, and the flash is fired to lighten the foreground.

The N4004 has a new and advanced auto-focus detection module, to be sure, as well as a computerized control system that provides fill flash automatically.