The SB-700 is a high-performance Speedlight with a large guide number of 28/92 (ISO 100 ft.) (at the 35 mm zoom-head position in Nikon FX-format at Standard light distribution, 20°C/68°F). Angle of Coverage. Power zoom function automatically adjusts the zoom-head position to match the lens focal length from 24 mm to 120 mm (in FX-format). Flash Shooting Distance Range 2 ft. to 66 ft. (varies depending on the cameras image area setting ISO sensitivity, zoom-head position, and lens aperture in use). Flash Mode TTL, Distance-priority manual flash, Manual flash. Compatible Cameras Cameras compatible with the Nikon Creative Lighting system are compatible with the SB-700. Flash Exposure Control Set on the Camera Camera's sync. modes: Slow-sync, Red-eye reduction, Redeye reduction in slow-sync, Rear-curtain sync flash Shooting functions: Auto FP High-Speed sync, FV Lock flash. Flash Output Level Compensation -3.0 to +3.0 EV in increments of 1/3 steps in the i-TTL mode. Bounce Capability The flash head tilts up to 90° or down to -7° and rotates horizontally 180° to the left and right Number of Flashes/Recycling Time Approx. 160 flashes with AA Alkaline, Approx. 2.5 seconds (Full power manual) with AA NiMH, 250 flashes, approx. 2.5 seconds. Ready Light SB-700 is fully recycled: Rear ready-light lights up and front light blinks Insufficient light for correct exposure (in i-TTL, operations): front and rear ready-lights blink for approximately three seconds after shooting.