ExpoImaging Rogue Safari Pop-up Flash Booster for The Nikon D100, D70, D70S, D50, D200, D80, D40, D40X, D300, D60, D90, D5000, D300S, D3000, D3100, D7000, D5100, D3200, D5200, D7100 Digital Cameras Capable of boosting light without the use of batteries to greatly increase the available flash power at extended distances Up to 8x More Light from On-Camera Flash Optimized for Lenses 100mm Quickly attaches to DSLR hot shoe Stores easily in your camera bag