The SB-910 AF Speedlight is a dedicated i-TTL flash that features precise flash metering capabilities and supports Nikon's Creative Lighting System as a shoe-mounted flash, a remote unit, or as a wireless flash commander. As a wireless commander, four channel options are available and up to three remote groups with an unlimited number of compatible individual flash units can be utilized. The SB-910 has an easily navigable interface with illuminated buttons and a dedicated menu button for greater efficiency in all situations. Color-correction filters are included for pairing the flash illumination with ambient lighting and enhanced thermal cut out protection works to prevent overheating by slowing recycle times as opposed to stopping the flash altogether.