Product Review

Newly-designed wireless system uses 2-way radio wave communication for enhanced communication among master and slave units. Achieves a transmission distance of up to 98.4' (30 m), all at a 360 degree angle. Up to 5 groups, or 15 individual flashes can be controlled via 1 transmitter. Supports E-TTL II flash, manual flash, stroboscopic and auto external flash metering. Dot matrix LCD panel displays all pertinent information simultaneously and backlit control panel means easy operation. 8 types of custom functions, 3 types of personal functions. Improved hot shoe contacts for more reliable information transmission and operation. Slave operation confirmation: Green Light--Lit: Radio Transmissions Okay Red Light--Lit: Not Connected Blinking: Transmission Error/ Too many units (Master units + slave units = more than 16 units) Orange Light--Lit: Sub-master transmission Blinking: Receiving remote release shooting, linked shooting signal Not compatible with earlier Speedlite models such as 580EX II