The Nikon SB-400 Speedlight is an intelligent and versatile external flash unit that provides i-TTL flash operation in a super-compact and ultra-lightweight body at an affordable price.

Features:

• Designed as an entry-level external flash, this flash is ideal for the compact D-40 digital SLR camera, but it is also useful for hobbyists and professionals looking for a handy i-TTL flash unit offering an effortless bounce flash function. When combined with cameras that are compatible with the Nikon Creative Lighting System, the SB-400 is controlled in i-TTL and D40's M (manual) mode.
• Compact, lightweight Speedlight unit
• Simple, intuitive operation; Put it on, turn it on and shoot!
• 18mm angle of coverage with Nikon DX format digital SLR cameras
• Utilizes Nikon's i-TTL intelligent flash
• Operates on two 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
• Compatible with all Nikon Creative Lighting System cameras

 

Electronic Construction:	Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
Guide Number:	30m / 98.4 ft. (ISO 200) 21m / 69 ft. (ISO 100)
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 )
Compatible Cameras:	All cameras compatible with Nikon Creative Lighting System
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° with click-stops at 0°, 60°, 75°, 90°.
Ready Light:	Lights up when the SB-400 is recharged and ready to fire; blinks to indicate: insufficient light; insufficient battery power; incompatibility of camera with SB-400; overheating
Flash Duration:	Approximately 1/1300th second at full output
Number of Flashes/Recycling Time:	Batteries Recycling Time Flashes / Interval Alkaline (1.5v) 3.9 sec. 140 / 3.9 - 30 sec. Lithium (1.5v) 4.2 sec. 250 / 4.2 - 30 sec. Oxyride (1.5v) 3.1 sec.&am

• Soft Case [SS-400]