Reference informationEn34SpecificationsElectronicconstructionAutomatic Insulated Gate Bipolar Transistor(IGBT) and series circuitryGuide number(20ºC/68ºF)30/98.4 (ISO 200, m/ft), 21/69 (ISO 100, m/ft)Angle ofcoverageLight distribution covers an 18mm lens whenmounted on a Nikon DX format camera, and a27mm lens when mounted on an F6Flash shootingdistance range0.6m to 20m (2 to 66 ft) (varies depending onthe ISO sensitivity, angle of the flash head, andlens aperture in use)Flash mode i-TTL, M (manual, only with the D4,D800-Series, D700, D300-Series, D90, D7000,D5100, D5000, D3200, D3100, D60 andD40-Series)CompatiblecamerasAll cameras compatible with CLSFlash exposurecontrol set onthe cameraSlow-sync, Red-eye reduction, Red-eyereduction in slow-sync, Rear-curtain sync flash,FV Lock flash, manual flashBouncecapabilityFlash head tilts up to 90º with click-stops at 0º,60º, 75º, 90ºON/OFF switch Turn the SB-400 on and off using the ON/OFFswitch