Remote flashes flicker violently when I half-press shutter on Canon 5D3 if using TTL pass through

Hi - I just bought 4 new Cactus V6.

I have a Canon 5D3 with a Cactus V6 in the hot shoe and a Canon 580 EX2 flash on top of that.  I have the Cactus set to TTL pass through.  I then have 3 Canon 430EX flashes attached to three remote Cactus V6's.

If the 580 flash is turned off then everything works fine.  However, if the 580 flash is turned on then when I press the shutter half way to focus the three remote flashes go crazy -- rapid firing on their own, very fast more like a very bright flicker.  The green LED on the V6 that is sandwiched between the camera and the 580 flash also starts strobing in sync with the erratic rapid firing of the remote flashes.  It does this 100% of the times I try.

Troubleshooting instructions for "Flash Misfire - Unexpected Flash Firing" gives the following possibilities:
1) poor hot shoe connection. - I redid connection and all seems fine.
2) background radio interference - I get this regardless of where I am.  I also tried changing channels.
3) Tx and Rx are too close together - I get this at any distance.
4) Optical trigger switched on. - It is turned off.

Comments

  • Helllo @Mike4371

    That's indeed very erratic and unheard of so far. What firmware are you running on your V6?

    To check, press and hold Group A + D buttons as you switch on V6 to either TX or RX mode.

    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", "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. 
  • V1.1.016
  • Thanks @Mike4371

    Please try the latest 1.0.019 and see if it helps?
    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. 
  • The problem is fixed.  I updated the firmware and that did nothing.  I then noticed that I had properly configured the three V6's in RX mode to use the proper 430EX profile, but I had never entered a profile for the V6 that was on the camera in TX mode.  I configured it to the 580 EX2 flash that is mounted on top of it and suddenly everything is fine!

    Thanks.
  • Great news!  Thanks for letting us know @Mike4371 :)
    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. 
Sign In or Register to comment.