SB-900 Speedlight

The Nikon SB-900 Speedlight is a high performance Speedlight flash unit designed for Nikon Digital SLR cameras. The SB-900 is a high-performance Speedlight developed as the successor to the hugely successful Nikon SB-800. Practical functionality was emphasized in designing the SB-900, especially evident when used with Nikon digital SLR cameras compatible with the Nikon Creative Lighting System. It provides a wide 17-200 mm auto zoom range (expanded from the SB-800â€s 24-105mm), three illumination patterns, newly designed, streamlined operation with a full-information LCD panel, and AF-Assist illumination compatible with new-generation AF sensors. The SB-900 has an improved booster circuit for high-speed recycle time. In addition, firmware can be uploaded via a Nikon digital SLR camera—a worldâ€s first for flash units, assuring that the SB-900 can accept technological advancements. The SB-900 serves as the new core for the Nikon Creative Lighting System when used in combination with current Nikon digital SLRs, and it supports Advanced Wireless Lighting as a master or a remote Speedlight, inviting photographers to explore the many creative possibilities. Specifications Electronic construction Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry Guide number (20°C/68°F) 34/111.5 (ISO 100, m/ft), 48/157.5 (ISO 200, m/ft) Illumination pattern Three illumination patterns: standard, even and center-weighted The light distribution angle is automatically adjusted to the camera's image area in both FX and DX formats Flash shooting distance range 0.6 m to 20 m (2 to 66 ft) (varies depending on camera image area setting, illumination pattern, ISO sensitivity, zoom position, and lens aperture) Flash mode TTL, Auto Aperture flash, Non-TTL auto flash, Distance-priority manual flash, Manual flash, Repeating flash Other functions Test firing, monitor pre-flashes, AF-assist illuminator, and Modeling illuminator Multiple flash operation Advanced Wireless Lighting, SU-4 type wireless multiple flash Compatible cameras All cameras compatible with Nikon Creative Lighting System (other cameras can be used but functionality is reduced) Flash exposure control set on the camera Camera's sync modes: Slow-sync, Red-eye reduction in slow-sync, Rear-curtain sync, Rear-curtain slow-sync Bounce capability Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90° Flash head rotates horizontally 180° to the left and right with click-stops at 0°, 30°, 60°, 90°, 120°, 150°, 180° Power source Four AA-size alkaline-manganese (1.5V), lithium (1.5V), Oxyride (1.5V) or Ni-MH (2600 mAh) (rechargeable) (1.2V) batteries Ready light The SB-900 is fully recycled: Rear ready-light lights up and front light blinks Insufficient light for correct exposure (in i-TTL, Auto Aperture flash, Non-TTL Auto flash, or Distance-priority manual flash operations): ready-lights and front lights blink after shooting Flash duration Approx. 1/880 sec. at full output Mounting foot lock lever Provides secure attachment of SB-900 to camera's accessory shoe using locking plate and mount pin to prevent accidental detachment. Dimensions (W x H x D) Approx. 78.0 x146.0 x 118.5 mm (3.0 x 5.7 x 4.7 in.) Weight (without batteries) Approx. 415 g (14.6 oz.)