YONGNUO Camera Flash Speedlite YN560 III for Canon Nikon Pentax Olympus Fujifilm Panasonic Digital Cameras Adopted by global users trust the allways RF-602/RF-603 wireless flash system. Support 2.4G ultra-long-range wireless flash, the lead flashing distances up to 100 meters above. Same YN560-III can accept RF-603 and RF-602 wireless transmitter emits a signal, supports 16 channels, wireless flash easily. The YN560-III is equipped with large-size LCD screen, easy clear, intuitive view or set the flash of the function, and easy to use. ZOOM button, you can make a lamp covering a focal length between 24 ~ 105mm cycle movements. The YN560-III is equipped with an external power outlet, to meet your higher demand for call back speed, you can buy SF-18 Canon version to fit for it. It is equipped with a standard PC synchronous port, using a PC sync cord flash sync flash. High index 2.4G radio flash support M / Multi mode. Full light output recycling time of just three seconds, even without using the new battery, but also to get the speed of call back experience, only 4 to 5 seconds; You can also use external charging box call back again accelerated. Charging socket for external power pack and PC synchronous port. It also can automatically save your current operating settings, to facilitate the next time you boot.