A Camera Flash referred as Speedlite or Flashgun is a portable flash that can be fixed on the hot-shoe of a camera or fixed wirelessly off the camera. The advantage of a speedlite is that as they run on AA batteries, there is a complete freedom from AC outlets. Due to their light weight & compact size, they give you more mobility, are easy to pack & carry in your camera bag. Above all, when needed, they can be used instantly. For "Run & Shoot" photography like wedding, sports events and numerous other occasions, there is no substitute for speedlites. Features:- Osaka TT 990 suits for all DSLR cameras with standard metal hot shoe, such as Canon, Nikon, Pentax, Olympus etc - 8 power levels, each level has 3 fine tuning adjustments, giving you a more precise brightness control - Manual Zoom 18-180mm - Fast Recycling - 0.1 - 3 seconds - Power Saving Mode - Reduces unnecessary power loss - Flash Duration of 1/800-1/20000s, delivering crisp & vivid images - 4 Flash Modes - M, S1, S2 & Multi for improved versatility & usability - Integrated reflection board, giving a highlighted point on the eyes - Built-in wide-angle diffuser, creating soft, smooth & natural illumination - Multiple auto-self protections for power saving & against overheating - External power socket for external power pack & PC Female sync point.