The nikon sb 300 speedlight flashgun is a versatile easy to use entry level speedlight for controlling the quality and direction of light this portable lighting accessory provides more power than a built in flash and offers a guide number 18 meters at iso 100 the sb 300 head can be tilted 120 degrees which enables you to bounce the flash off the ceilings to soften shadows offering more of a flattering glow for portraits the nikon sb 300 speedlight flashgun is a great way to go beyond th