The Nikon D90 brings Live View to that ... and green when in focus (after half-pressing the shutter button). The video clip at right shows the D90 tracking a live face while zooming in and out ...

Besides the main flash modes listed above, the D90's onboard speedlight can also be used in manual mode, as a repeating flash, or as a commander in Nikon's Creative Lighting System. (See below for ...