Precision Design DSLR300 High Power Auto Flash Highly Versatile... Fits all Digital SLRs and compact digital cameras with a flash shoe Dramatically improves telephoto zoom flash pictures Improves color, depth and evenness of lighting at all distances Head bounces and swivels enabling vertical or horizontal soft lighting effects Zoom head adjusts light output from even wide angle overage to concentrated telephoto for a longer reach Three power settings Automatic exposure Exposure verification indicator Dramatically improves telephoto zoom flash pictures Enables use of smaller apertures for increased depth of field Improves color, depth and evenness of lighting Head bounces and swivels enabling soft lighting effects Fits most DSLRs and compact digital cameras with a flash shoe SafeSync Low Voltage Trigger Circuitry Zoom head adjusts light output from wide angle coverage to telephoto