The Nikon SB-910 Speedlight is a pro level on camera flash, a top tier unit in Nikon's Creative Lighting System (CLS) it's a solid tool for photographers who need to add light right.
The SB-910 has a deeper resevoir of power than most flash units this enabling more low power shots before slowing and also very high intensity output when needed (sometimes more is more). The reseviour recharges quickly with 4 AA batteries but to shoot even faster, attach an external power source to the external power supply connection on the front of the unit. A thermal sensor prevent damage to the flash from overheating by slowing the recycle time to and presents a warning as cutoff tempature is approached. The head rotates and swivels for bounce lighting. An ultrawide angle diffuser and bounce card are built-in. The auto zoom flash head improves efficency and range. A flash illumination pattern setting offers three choices for how the zoom head adjusts for edge falloff and the zoom head also adjusts for DX/FX formats.
Accurately measuring and adjusting light output as needed is crucial to getting consistently good flash results and SB-910 works with your camera to do just that. Flash metering is TTL (Through The Lens) compatitble with all Nikon CLS capable cameras and also with Nikon i-TTL cameras. Earlier Nikon camera models can utilize one of the non-TTL Auto modes (using the flash sensor built in to the SB-910) or use one of the manual power or strobosopic modes. Flash Exposure Compensation can be set directly on the SB-910, seperate from flash exposure compensation set in camera. Flash compensation with cameras lacking a dedicated control is possible. A test fire/modeling button allows visualization of shadows. A flash filter detector informs the system when compatible Nikon flash filters are mounted so exposure and color adjustments can be made.
A large backlit display sceen provides vital information at a glance, showing comprehensive setting, range, and status data in great detail including minimum and maximum range at current settings . Custom Function and 'My Menu' allow allow advanced users to conveniently personalize settings. The flash firmware is also updateable (via most digital bodies).
As a top level unit in Nikons Creative Lighting System the SB-900 can serve as a 'Commander' unit for up to three seperate groups of compatible flashes. The SB-900 features a front mounted flash ready indicator light for use in remote mode. Switching to Commander or Remote mode is done at the flip of a switch and the display screen shows all relavant data about the settings including flash groups, channel, flash exposure compensation, and group metering mode.
Other amenities include a Wide-Area AF-Assist Illuminator for autofocus assistance in low lighting, a metal mounting foot with lever lock, and side sync port.
Standard accessories include: Speedlight Stand AS-21, Soft Case SS-910, Diffusion Dome SW-13H, Fluorescent Filter SZ-2FL, Incandescent Filter SZ-2TN.
Other accessories include: Color Filter Set SJ-3 used & Color Filter Holder SZ-2, TTL Remote Cord SC-28, TTL Remote Cord SC-29, Nikon High- performance Battery Pack SD-9
Basic operation of the unit is quite simple in TTL modes; to fully master and get the most out Nikon's industry leading flash system, reading the detailed and informative instruction manual is highly recommended.
Photography is nothing without light and the SB-910 is a great option for illuminating your vision.