I am planning to purchase the 600ex rt and YN er rt, I have an existing 430 ex II. To my assumption, the YN er rt trigger is only designed for radio transmission capable speedlights which is the 600ex. My question is, can the 600ex rt still work as a master flash to light the 430ex II if triggered by the transmitter? If not, is there a way to pop up the 430 or should I just go to full rt system?
Thanks in advance.