Glam It Up NW wrote:
Will these 2 flashes talk to each other in master slave mode. Just purchased a new in the box 430EX on Ebay tonight for less than 120 bucks with warranty card.
Yes, the 430EX II can be the slave (via optical trigger) to a 550EX or a 600EX-RT (via optical trigger) in master mode. There must be some line-of-site between the IR transmitters on each unit, thought I have bounced off of white walls with mine.