Guide number 58, E-TTL, i-TTL, Manual, Multi, HSS, Slave. Optical communication.
Guide Number: 60. Modes: ETTL/Manual/Multi. HSS Synchro. YN622 and YN603II compatibility
Guide number 60, E-TTL, Manual, Multi, HSS, Slave. Optical and radio communication.
Guide number: 60. Compatible with transmitter YN-E3-RT. Support HSS. Continuous LED light.