Nikon SB-900 AF Speedlight Electronic Flash

Powerful and versatile SB-900 works as a stand-alone flash, featuring wireless operation as a Commander or wireless remote light source. Includes AS-21 Speedlight Stand, SW-13H Diffusion Dome, SJ-900 Color Filter Set, SZ-2 Color Filter Holder, SS-900 Soft Case; Requires 4 AA Batteries (not included) Guide Number 34/111.5 (ISO 100, m/ft), 48/157.5 (ISO 200, m/ft) Control up to three remote Speedlight groups and an unlimited number of compatible Speedlights: The SB-900's Wireless Commander Mode offers wireless control at the master Speedlight position. Four wireless Channel options allow you to manage wireless conflicts in multiple photographer environments. Streamlined controls and menus: The Rotary Select Dial sets key flash functions quickly?a prominent Master and Remote control Switch simplifies wireless operation. FX/DX Format identification: Automatic FX/DX switching optimizes light distribution angle. Expanded Auto Power Zoom Coverage: The SB-900 provides zoom coverage from 17-200mm in the FX-format and 12-200mm coverage in the DX-format. Choose from 3 light distribution patterns: Improve light quality by selecting Standard for general illumination, Center-weighted for portraits, or for groups or interiors. User-friendly firmware updating: Allows uploading of performance enhancement developments to the SB-900 with select Nikon Digital SLR cameras. Color gel filter identification: The SB-900 automatically identifies mounted color gel filters and adjusts the camera?s auto white-balance setting with select Nikon digital