@BazzaBoy wrote:
I have a question about the 270EX II.
How do I use it as a slave with my EOS 6D? The instruction manual says that if I set it to the slave mode, it will fire as a slave with bounced light off another flash. So, I used my 90EX on my camera hot shoe and set the 270EX in the slave mode and set it aside. But nothing happened when my camera flash went off. The 270EX II did not go off.
Does that mean I got a defective flash?
Any help will be appreciated. Thanks.
As others had stated, yes you can use the 90EX to remote control your 270EXII off camera. What you will need to do:
1. On the 90EX, change it to Master Controller (the display should say Master with a lightning bolt.
2. On the camera menu, make sure Wireless Flash Control is enabled.
3. On the 270EX II, change to Slave with lightning bolt
4. Verify the the 90EX (and/or on camera) and the 270EXII both show the same channel (1 is the default)
To test, point the 270EXII front directly towards the 90EX and fire off a shot from the camera and verify that it goes off. Once that works then you worry about correct placement to make sure it works properly.
The 270EXII sensor is in the front and when in use points away from the 90EX flash pulses. The flash pulses are line of sight only, being optical and not radio. The 270EXII can only swivel up but not sideways so when you point the flash towards the subject, the sensor is looking away from the camera and the 90EX. When indoors, usually there's no problem because the pulses bounce off the walls and get to the sensor but that is not always possible, especially when you are using umbrellas or softboxes. Without umbrellas or softbox, one way to make it better is to point the 270EXII sensor towards the 90EX with the flash head straight up, bouncing off a white ceiling. You might be able to do this while bouncing off an umbrella too.
