16EnBuilt-in Flash UnitsWhen using the built-in flash on cameras equipped with a built-in flashunit, remove the lens hood to prevent vignetting (shadows createdwhere the end of the lens obscures the built-in flash).Vibration ReductionVibration reduction reduces blur caused by camera shake, allowingshutter speeds up to five stops slower than would otherwise be the case(Nikon measurements; effects vary with the photographer and shootingconditions). This increases the range of shutter speeds available andpermits hand-held, tripod-free photography in a wide range of situations.Using the Vibration Reduction ON/OFF SwitchSelect ON to enable vibration reduction. Vibration reduction isactivated when the shutter-release button is pressedhalfway, reducing the effects of camera shake forimproved framing and focus.Select OFF to turn vibration reduction off.Using the Vibration Reduction Mode SwitchThe vibration reduction mode switch is used to select the vibrationreduction mode when vibration reduction is on.Select NORMAL to reduce the effects of vibration whenphotographing from a fixed position and in othersituations with comparatively little camera motion.Select ACTIVE to reduce the effects of vibration whenshooting from a moving vehicle, while walking, and inother situations with active camera motion.NN