Nikon SB-400 AF Speedlight Unit

The SB-400 gives photographers the opportunity to enjoy brighter and more natural lighting for images taken using a flash. It is designed to suit entry-level Digital SLR users while also suitable for more experienced users. Those who have a camera within the D2 series will also benefit from the convenient portable flash unit. The SB-400 offers a guide number of 30 (ISO 200, m), and effortless bounce flash function and is controlled in i-TTL and the D40’s M (manual) mode.

18mm angle of coverage with Nikon DX Format digital SLR cameras

Operates on 2 AA-size (1.5V) batteries

Fast 2.5 second recycling time

Bounce capabilities in 4 steps up to 90 degrees

Approximate guide number of 98.4 feet at ISO 200 (at 18mm Zoom Head setting)

Flash shooting distance range from 2 and up to 66 feet

Electronic construction: Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry

Guide number: (at 18mm zoom-head position, 20 degrees C/68 degrees F) 30m per 98.4 feet

Angle of coverage: Light distribution covers an 18mm Lens when mounted on a Nikon DX format digital SLR camera (27mm lens when mounted on an F6 35mm SLR)

Flash shooting distance range: 2 to 66 feet (Varies depending on the ISO sensitivity, zoom-head position, and lens Aperture in use)

Flash mode: i-TTL, M (manual with the D40 only)

Flash Exposure control set on the camera: Slow-sync, red-eye reduction, red-eye reduction in slow sync, rear-curtain sync flash, FV lock flash, manual flash (with Nikon Creative Lighting System digital and 35mm SLR cameras)

Bounce capability: Flash head tilts up to 90 degrees with click-stops at 0, 60, 75, 90 degrees

Power Source: Two AA batteries (1.5V or lower)

Flashes/Recycling time at full output: Alkaline-manganese (1.5V) 140/3.9 sec, Lithium (1.5V) 250/4.2 sec, Oxyride (1.5V) 150/3.1 sec, Ni-MH rechargeable (1.5V, 2600 mAh) 210/2.5 sec

Lights up when the SB-400 is recharged and ready to fire. Blinks to indicate insufficient light, insufficient Battery power and incompatibility of camera with SB-400

Flash duration: Approximately 1/1300th second at full output

Mounting foot lever lock: Provides secure attachment to the camera accessory shoe with a mount pin to prevent accidental detachment

Dimensions: Width 2.6 x Height 2.2 x Depth 3.1 inches

Weight: 4.5 ounces