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Pentax K10D / K20D Flash not fire in wither TTL / M mode

kentam
in V6 II Problems
Firmware: 1.1.013

Case 1
Camera: Pentax K10D / K20D
Flash: Pentax 540Fgz Mode M / TTL
Sync: Power sync / HSS
Shutter speed all
Test button can remote fire the flash, but no flash while take photo

Case 2
Camera: Pentax K10D / K20D
Flash: Manual PC sync to studio flash
Sync: Power sync / normal HSS
Shutter speed all (but below 1/180 can trigger the flash)
Test button can remote fire the flash but no flash while take photo

acon trigger do working well and without such issues, can you please fix it asap... otherwise I may need to return the cactus v6 ii

Comments

  • AntonioAntonio
    Hi again @kentam

    The flash MUST operate in TTL mode.
    1. Switch on the flash first
    2. Set it to TTL (P-TTL) mode
    3. Then switch the V6 II to RX mode
    Do you see the V6 II auto detect the flash, applying an AUTO flash profile and a letter "P" shown inside the flash icon?

    Similarly, on the camera side, do you also see a letter "P" in the camera icon?

    As I mentioned in another thread, did you keep the camera active by pressing camera shutter button as you switch V6 II to TX mode?

    Also mentioned in another thread, the K10D may not be compatible. If auto-detect works but flash still does not sync with image, you may want to try the custom settings.

    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".

    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. 
  • kentam
    Antonio said:

    Hi again @kentam

    The flash MUST operate in TTL mode.

    1. Switch on the flash first

      Yes done

    2. Set it to TTL (P-TTL) mode

      Yes done
    3. Then switch the V6 II to RX mode

      Yes done
    Do you see the V6 II auto detect the flash, applying an AUTO flash profile and a letter "P" shown inside the flash icon?

    Yes done


    Similarly, on the camera side, do you also see a letter "P" in the camera icon?

    Yes done


    As I mentioned in another thread, did you keep the camera active by pressing camera shutter button as you switch V6 II to TX mode?

    Also mentioned in another thread, the K10D may not be compatible. If auto-detect works but flash still does not sync with image, you may want to try the custom settings.

    IT just not fire the flash when take photo while > 1/180 or < 1/180


    Thank you.
  • AntonioAntonio
    Thanks for the confirmations. So it appears that the V6 II established good connections with the camera and flash.

    So is it only the K10D that is not working?

    Have you tried choosing a custom camera setting? Possibly 2 or 3 as 1 is for 645Z.

    Does your K20D work? We have one which we can certainly test again for you, but it has always worked.
    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".

    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. 
  • kentam
    Antonio said:

    Thanks for the confirmations. So it appears that the V6 II established good connections with the camera and flash.

    So is it only the K10D that is not working?

    Have you tried choosing a custom camera setting? Possibly 2 or 3 as 1 is for 645Z.

    Does your K20D work? We have one which we can certainly test again for you, but it has always worked.

    K20D not work
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