Pentax K3II and Sigma DC500 Super Flash

Hello All I would like to no if the Cactus V6II is Compatable with the Sigma 500DC Super Flash or would i be better off purchasing V6 


  • Hi @ve3ulf,

    This is an older model I believe?

    I am not sure if it runs on digital TTL protocol. If it only runs on analogue then it won't work on the V6 II, but will work on the original V6 if it is made for Canon.

    And are you able to swtich on HSS function on the flash?
    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", "NIK.A.001", "v.103", or "A06".

    TTL or HSS not working on Cactus V6 II and V6 IIs? Be sure to check hot shoe connectivity by doing the <CAMERA INFO> check.

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