The YN560EX can be triggered by 580EX II SB-900/800/700 7D/60D/600D Nikon c-command and ST-E2 and flashes as TTL mode as well as M/Multi mode. To enjoy wireless TTL lighting ratio control as well as remote control of output level you may only take a camera with built-in commander mode and the YN560EX. - The bran-new design looks generous original solid and reliable. - Large LCD panel you can look into and set the functions on the LCD panel clearly and directly. - YONGNUO new manual speedlite supporting Multi flash. - GN58 at ISO100 105mm - YONGNUO new large guide number manual speedlite supporting remote TTL and M Multi modes - The 560EX can be triggered by hot-shoe flash command slave mode optical S1 and S2 (pre-flash-canceled mode). - The YN560EX covers a focal length range of 24 ~ 105mm by operated the zooming buttons. - In the case of remote mode FEC FEB Rear-curtain sync FE lock is supported. - It only takes 3 seconds to finish a charging cycle after a full level output. Even without new batteries you can get super charging speed that it only needs 4 to 5 seconds. - YN560EX provides 2.5mm type PC portyou can make the flash synchronously by connecting to the PC port. - Turn on the sound prompt function different sounds indicate working situations help you focus on shooting. - The YN560EX supports advanced settings; you can customize the unit according to your shooting preferences. - YN560EX can save the current settings automatically.