Firmware Release Notes?

I just received a Cactus V6 and two Cactus RF60 flashes, and updated the firmware in all three devices.

I noticed the latest version of the V6 firmware was dated December 8th, but there was no announcement of a new firmware release on the home page or in the forum, and there are no release notes.

Is it safe to use this version? What was changed?


  • Hey guys, it's safe.

    The link to the Firmware Release Notes should always be this:

    Bug fixes:
    Fixed the inconsistentpower output of SB-600, SB-900 and SB-910 profiles after switching off and on the V6 again.

    Fixed the triggering issue with the profile of Nissin Di-866 for Canon. User interface improvements:

    Standardized the LED signal length on RX whether it is triggered from the TX in group sequence mode or not.

    and more... Please see the PDF link above.
    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  At Cactus, we listen. 
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