Guide nuber: 58 - CLS, E-TTL / i-TTL - MULTI, USB, recharge time: 2s.
Guide nuber: 58 - Speedlite, E-TTL / E-TTL II - MULTI, USB, recharge time: 2s.
Guide number 58, E-TTL, i-TTL, Manual, Multi, HSS, Slave. Optical communication.
Guide number 58, E-TTL, i-TTL, Manual, Multi, HSS, Slave. Optical communication.