V6 with Nikon SB800 - Not able to change flash's power from TX to RX

edited March 2017 in V6 Problems
Hi, 
I just bought two V6, I've tried them with a Nikon SB800 (I've got a Nikon D800 camera). 
I seem to follow all the instructions (I attach the flash, set it in TTL mode, I switch on the V6 in RX mode, same channel as the TX and set the flash profile) and when I shot a picture the flash fires, but it seems impossibile to change the power from the transmitter. 
It seems also strange that despite the group I select for the flash, if it's on the same channel, the TX will make it fire (example: RX on group B, channel 1. The TX have all the others groups selected or none of them and when I shot the picture the flash fires anyway, I don't think it's normal, is it?)

Main issue here is to change the power of the flash from the TX and it doesn't seem possible to do it.  
Also I noticed that the little antenna icon on the right of the RX doesn't have any bars on it (as it's described in the instructions instead). I don't know if it means anything. 
Is there something I'm missing? It should be simpler than this, doesn't it?
Thanks again for your help. 

Stefano

Comments

  • Hi Stefano,

    Sure, it should be simpler than what you experienced.

    Please check the following:
    1. What is the firmware version currently used on the V6 units? The latest is 2.1.001. You can check by holding down group buttons A and D and switching on the unit.
    2. What was the distance between camera and flash?  Try leaving sufficient distance. For testing purposes, set it at least 1m apart.
    3. Try other channels. If you were in Ch 2, try Ch.13, something on the other spectrum.
    4. Try setting <WORK RANGE> to "Short"

    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", "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. 
  • Antonio
    I just responded on a similar thread but forgot the title so I'm not sure how to locate any responses. Anyway, sorry for the duplication but I'm having the same problem.
    Nikon d850. SB24 and SB700 flashes. Firmware 2.1.001
    I tried to follow the steps exactly, including the order of operations but no luck getting the flash power to change. I'm also a bit confused as to why the flash needs to be in TTL mode. I DO NOT want the camera making any decisions for me. I want to control the flash power and camera exposure independently.
    Thanks for any help you can give.
  • Well, I seem to have made a little bit of progress. I understand why the flash needs to be in TTL and I have succeeded in getting the SB24 flash to work properly (including changing the power remotely). The problem I was having was that the profile was not correct. 

    Unfortunately, I still cannot get the SB700 to work. I have tried to adjust everything to match the SB24 (but with the SB700 profile, of course). Now, I cannot even get the flash to fire at all! The transmitter seems to talk to the receiver (the receiver light comes on when the transmitter is activated) but the flash does not fire. However, the 'flash' button on the back of the speedlight blinks when the transmitter triggers, so clearly it is getting some sort of signal. If I switch the receiver profile to manual the flash fires but of course the power level is fixed.

    Yikes, this is frustrating!

    Anyone have any ideas?????

    Tim
  • Flash profile should be the corresponding Nikon model, set the flash in TTL mode, and it should work like a gem.

    Could you confirm the above?

    Thanks!
    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. 
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