RF60X not triggered by Pentax K5 in local mode

(I have updated the firmware for the V6II & RF60X units described below.)
  • My newly received RF60X fires in local mode when mounted on my wife's Pentax K-50.  
  • It will NOT fire in local mode when mounted on my Pentax K-5.
  • The K-5 WILL fire my Pentax AF-540FGZ. 
  • My also newly received V6II will fire the RF60X using the test button.
  • Why is the K-5 communicating with the Pentax flash, but not the Cactus equipment?  
 Suggestions will be appreciated.


  • Could you be using LiveVIew mode?

    It appears that when LiveView mode is activated it requires a TTL flash - all hot shoe contact pins are used. The RF60X only has a centre hot shoe pin so that might have prevented it from using. 

    Have a try and let us know.


    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 info@cactus-image.com.  At Cactus, we listen. 
  • It works! Sorry for my delay in replying.
  • It's good to hear that.
    Ray Chan

    Senior Product Specialist
    Harvest One Limited
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