Better Beamer Flash X-Tender, FX-3 Flash Output Booster

Pre-owned. Mint condition. Gives you extra "flash power" (light output) in the field. Used with long telephoto lenses. The Flash X-Tender packs flat, weighs less than 3 ounces and sets up in 30 seconds.Flash output is extended a minimum of 2 full f-stops! Brings distant wildlife to life with an eye highlight. Used and praised by nature photographers world-wide. When used with TTL (Through-The-Lens) flash metering, exposure is automatically handled by your camera and flash, and no special compensation is required. My Beamer was used (sized for use) in conjunction with a Canon Speedlite 550EX flash.