Fuji EF-42 TTL flash pass-through on V6 II & XT-2 not working properly

I have a Fuji EF-42 flash that I placed on top of the Cactus V6 II, mounted on a Fuji X-T2. When using TTL pass-through, the flash is not firing correctly. Only fires full power and does not adjust based on TTL.

If I place the same EF-42 & V6 II on my X-T1 it works as expected.

If I place the EF-42 on the X-T2 it works as expected.

Using latest firmware as of this post.


  • Using latest firmware as of this post.

    Are you referring to the beta firmware? Or the public one, 1.1.004?

    The X-T2 is still llisted as NOT compatible with the V6 II.
    So with or without the TTL Pass Through it's not going to work on this Fujifilm camera.

    If you are interested in testing the beta firmware, send an email to info@cactus-image.com with subject heading "X-T2" and I will send it to 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. 
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