The yongnuo speedlite YN-568EX Speedlite Yongnuo. This powerful unit is compatible with Nikon cameras that have i-TTL control. It features a guide number of 190? at ISO 100 and 105mm for illuminating your subject along with a zoom head with coverage from 24-105mm. Also, the flash can tilt from -7 to 90? and rotates 270? for versatility in bouncing your light.