I have a T1i and 580EX (not 580EX II) flash. I would like to use the flash of the camera. Would I need any other devices (trigger, transmitter)? If not, then could you give me the guide as how it is set. Thanks in advance.
Thanks for the advice. Now if I were to have two 580EX flashes, one mounted on the camera and the other off the camera then the one on the camera will trigger the other, no other devices like Yongnuo 622 is needed, right?
