SPEEDLIGHT NIKON SB-910 / FLASH NIKON SB910

Specifications
Electronic construction
Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
Guide number (at 35 mm zoom head position, in FX format, standard illumination pattern, 20°C/68°F)
34/111.5 (ISO 100, m/ft), 48/157.5 (ISO 200, m/ft)
Illumination pattern
There are 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
Effective flash output distance range (in i-TTL, auto aperture flash or non-TTL auto flash mode)
0.6 m to 20 m (2 to 66 ft.) (varies depending on camera's image area setting, illumination pattern, ISO sensitivity, zoom head position, and lens aperture in use)
Flash mode
i-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 illumination for multi-point AF, and modeling illumination
Multiple flash-unit photography operation
Advanced Wireless Lighting, SU-4 type wireless multiple flash-unit photography
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
The SB-910 is fully recycled: lights up
Insufficient flash output for correct exposure (in i-TTL, auto aperture flash, non-TTL auto flash or distance-priority manual flash mode): blinks
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°, 75°, 90°, 120°, 150°, 180°
Power source
Use four AA-size batteries of the same brand from any
of the following types:
1.5 V LR6 (AA-size) alkaline batteries
1.5 V FR6 (AA-size) lithium batteries
1.2 V HR6 (AA-size) rechargeable Ni-MH batteries
Flash-ready indicator
The SB-910 is fully recycled: lights up