Canon 5 D Mark lll + speedlight 600 + strobe

Hey guys I did all by instructions and my strobe dose work with v6 but the light doesn't


  • Hi @cebotari, do you have the Canon 600EX-RT?

    (1) Did you choose the corresponding flash profile on the V6 RX unit?

    (2) Is the flash set to TTL Mode?

    (3) Are both V6 TX and V6 RX units set to the same Channel?

    (4) Do the Group match up? 

    (5) What shutter speed is your camera set to?

    I hope the above list helps.
    If not please send us more information on your setup.

    Thank you!
    Antonio Lao
    Brand Manager

    To help us better help you, always state the exact firmware version installed on your Cactus device(s), such as: "1.1.013", "FUJ.1.002", "NIK.A.001", "v.103".

    Nikon D750 users please read this thread: 

    Fujifilm EF-X500 users please read this thread:

    Feel free to suggest an improvement or share product ideas. Contact us directly at  At Cactus, we listen. 
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