V6 can go beyond limitation of 4 groups

If the multi-channel feature of the V5 can be incorporated in the V6, then the number of combinations that can be controlled by the v6 can be increased significantly.  Even if the channels for each channel is limited to 5, that would give a combination of 20 instead of 4.  This would allow the V6 to turn on and off many more flashes in different placements in addition to their power.

I don't understand why the group feature cannot independently be set to different channels.  This alone will allow the V6 to be the master transmitter in a setup that also includes V5 triggers set to different channels.  Can this be done with a firmware upgrade? 


  • Hi Jaime,

    It is possible, but not using your multi-channel idea.  All the V6 needs to run on the same channel for them to sync at the same time.

    The major restriction is the four group buttons.

    It is hardware we need to work around, and we can do so by creating a second page of the LCD showing the power (or zoom) settings on the four groups. However I would imagine this would massively slow down the speed of adjusting the groups, and affects the overall user experience. So probably not preferred.

    Now, instead of resorting to software (firmware) help, here's a different take on the hardware side... mounting a second V6 as transmitter. I saw this from another V6 user, NFG Photo: https://instagram.com/p/84CDEVBUIf/?taken-by=nfgphoto

    But thanks for asking the question here, it makes us think...

    Are there many others out there who are dying for more than four (4) flash groups?

    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", "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) and not by X-TTL firmware versions: PEN.A.001 and OLY.A.001.  No schedule has been released yet. 

    Cactus RF60X / RF60 Firmware versions A01 and A02 currently ONLY works with PEN.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.

    Cactus RF60 is now an off-camera TTL flash with firmware version 205 or later!

    Metz M400 (for Fujifilm) is now supported on the Cactus V6 II (HSS and TTL).

    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. 
  • How about adding a second page function in firmware?  Add an * function that turns the groups A,B,C,D  into D, E, F, G (or A*, B*, C*, D*).  that gives an additional four channels.  So choosing between the first four and the second four groups is just a setting away without the inconvenience of stacking transmitters. Of course, stacking a second V6 transmitter would add 8 more groups.
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