Disable Selection Dial

I had my first shoot with the V6 today, and they performed perfectly, however I have a pretty serious problem.  When I hold the camera to my eye to look through the viewfinder, my forehead touches the V6 transmitter.  Several times I found that I had moved the adjustment dial this way, and every V6 receiver in the studio was appropriately too bright or dark.

It seems pretty critical that a lockout be somehow created, so that this doesn't happen.  I think perhaps if the OK button was optionally able to serve as a lockout control, so that it could toggle the lockout on or off, would solve the problem.  Press OK and the dial by itself does nothing (but still adjust individual groups as normal).  Press OK again to enable every-group adjustment. 

I never once needed to adjust the groups in whole steps, so the current function of the OK button was never used.  But I did adjust every group with my forehead at least eight times, which is not very helpful.


  • Hi NFG, that's a good idea and we have also heard from other V6 users suggesting the same. 

    FYI I have already spoken to R&D and they will check on the possibility of including this new locking function on future firmware updates. 

    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".

    For the time being, Cactus V6 (MK1) running on firmware version 2.1.001 can be triggered by a V6 II (MK2) running on Multi-brand HSS firmware (e.g. 1.1.013) but not by X-TTL firmware versions:  PEN.A.001 NIK.A.001 OLY.A.001.  No schedule has been released yet for an "A" version firmware on the V6 (MK1). 

    Cactus RF60X / RF60 Firmware versions A04 and A03 currently ONLY works with PEN.A.001 NIK.A.001 and OLY.A.001.  Other "A" version of X-TTL firmware will be released soon. For both Multi-brand HSS and X-TTL firmware versions (FUJ, SIG, SON), install firmware version 103 / 205 on your RF60X / RF60.

    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 info@cactus-image.com.  At Cactus, we listen. 
  • Great news! We have added Selection dial lock in the latest firmware updates. Another brand new feature, Group Sequence, is also available. Please refer to the firmware update notes here.


    Hope you like it. We will keep adding new features to the V6. Your suggestion is highly appreciated.

    All the best!
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