Models: 

XNiteNikonSB910-715  Nikon Electronic SB-910 Electronic Flash Converted to Infrared IR-Only 715nm

XNiteNikonSB910-1000  Nikon Electronic SB-910 Electronic Flash Converted to Infrared IR-Only 1000nm

XNiteNikonSB910-UV  Nikon Electronic SB-910 Electronic Flash Converted to Ultraviolet UV-Only

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The specifications listed below are for the stock flash - not the infrared flash.  Please understand that the flash performance with your camera will vary with a variety of factors. 

Specifications

	Commander Function Yes
	Remote Function Yes
	Guide Number 34 m/111.5 ft. (at ISO 100, 35mm zoom head position, in FX format, standard illumination pattern, 20°C/68°F) to 48 m/157.5 ft. (at ISO 200, 35mm zoom head position, in FX format, standard illumination pattern, 20°C/68°F)
	Electronic Construction Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
	Flash Exposure Control Distance-priority manual flash  i-TTL Balanced Fill-Flash with CLS compatible cameras  Manual Flash (with Nikon Creative Lighting System digital and 35mm SLR cameras)
	Lens Coverage 8 to 11mm (DX-format, Automatic mode with built-in wide-angle panel deployed)  12 to 17mm (FX-format, Automatic mode with built-in wide-angle panel deployed)  12 to 200mm (DX-format, Automatic mode)  17 to 200mm (FX-format, Automatic mode)
	Illumination pattern The light distribution angle is automatically adjusted to the camera's image area in both FX and DX formats  Standard  Even  Center-weighted
	Other Available Functions Test Firing  Monitor Pre-flashes  AF-assist illumination for multi-point AF  Modeling illuminator
	Bounce Function (Tilt) Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90°.
	Bounce Function (Rotate) Flash head rotates horizontally 180° to the left and right with click-stops at 0°, 30°, 60°, 75°, 90°, 120°, 150°, 180°
	Minimum Recycling Time 2.3 sec. (approx.) with Ni-MH (2600 mAh) batteries  3.0 sec. (approx.) with Oxyride™ (1.5V) batteries  4.0 sec. (approx.) with Alkaline-manganese (1.5V) batteries  4.5 sec. (approx.) with Lithium (1.5V) batteries
	Flash Duration 1/880 sec. at M 1/1 (full) output  1/1100 sec. at M 1/2 output  1/2550 sec. at M 1/4 output  1/5000 sec. at M 1/8 output  1/10000 sec. at M 1/16 output  1/20000 sec. at M 1/32 output  1/35700 sec. at M 1/64 output  1/38500 sec. at M 1/128 output
	Required Power Source Four 1.2V Ni-MH (AA-size) batteries  Four 1.5V Alkaline-manganese (AA-size) batteries  Four 1.5V Lithium (AA-size) batteries
	Optional Power Supply SK-6 Power Bracket Unit, SD-9 High-Performance Battery Pack  SD-8A High-Performance Battery Pack
	Flash-ready Indicator Rear and Front lights blink: Insufficient light for correct exposure (in i-TTL, Auto Aperture flash, Non-TTL Auto flash, or Distance-priority manual flash operations).  Rear lights up and Front blinks: recycled and ready to fire.
	Ready Light Front
	Flash Compensation –3.0 EV to +3.0 EV in increments of 1/3 steps in i-TTL auto flash, Auto Aperture flash, Non-TTL auto flash and Distance-priority manual flash modes
	Custom Setting AF-Assist Illumination  Modeling Illuminator  Monitor pre-flashes  Test firing
	Minimum Number of Flashes / Recycling Time 110/4.0 – 30 sec. (1.5V Alkaline-manganese)  165/2.3–30 sec. (Ni-MH (eneloop))  190/2.3–30 sec. (2600mAh Ni-MH)  230/4.5–120 sec. (1.5V Lithium)
	Wireless Flash Modes Master  Master (RPT)  Off  Remote  SU-4
	Wireless Communication Channels Four: 1, 2, 3 and 4 Channels
	Wireless Groups Three: A, B and C
	Other Functions Firmware update  ISO sensitivity setting  Key lock  Recalling the underexposure value in the TTL auto flash mode  Resetting the settings  Improved Thermal Cut-out
	Dimensions 3.1 x 5.7 x 4.4 in. (78.5 x 145 x 113mm)
	Weight (Approx. without batteries) 14.8 oz. (420g)