The Younguo603 can use versatile.
Either as a remote shutter release for the camera, with the trigger like that on the camera is working, press lightly - focus is activated, all press - triggering.
Works beautifully, and the external flash can be used in addition, but then without ETTL, ie the tourist information, the camera will not be passed to the flash, only the signal to trigger.
Became for my application no problem since I already use the flash in my outdoor shots as manually controlled brightener.
Anyone who wants to use ETTL, must pick up the model 622, which support ETTL.
Furthermore, you can use the device as a trigger for unleashed flashes, works wonderfully, but again, as has been written without ETTL, ie with manual adjustment on flash.
Controlling the unleashed flash or flash group through the camera menu is not possible.
Deliberately proceeded to 603 and not resorted to 622 since the model 602 is deutlch small and me went to the remote tripping function in the first place.
This problem is very well done.
PS: If you use the device as a remote shutter release for the camera, the supplied cable must be used to connect the receiver and camera.
There are 2 different, therefore the order making sure that her ordered right model for you.
