LCD and layout of controls designed for easy and intuitive operation Multi-step auto zoom covers wide 24-120 mm zoom range Three illumination patterns–standard, center-weighted and even–available to match every shooting environment Automatically detects Nikon FX and Nikon DX formats and selects suitable light distribution angle Short recycling time AF-assist illumination for multi-point AF, with wide 24-135 mm focal range Quick wireless control mode allows control of remote flash unit groups A and B flash output level ratios Firmware updates via Nikon digital SLR cameras Automatically delays recycling time if temperature of flash head rises in order to avoid deterioration of flash head Automatically detects type of hard-type color compensation filter (fluorescent and incandescent) and automatically transmits filter information to camera for optimum white balance setting Optional Water Guards WG-AS1 (for D3 series), WG-AS2 (for D300 series) and WG-AS3 (for D700) protect camera's accessory shoe contact when SB-700 is mounted on a Nikon digital SLR camera