Should I choose V6II or V6IIs for Sony A7 II + Canon 580EXII?

Hi there,

I am considering to purchase V6II/s but I am confused which model I should purchase.  I am owning Canon 580EXII and going to buy Sony A7 II.  Could you please suggest which model between V6II and V6IIs I should pick?



  • Hi @oceanwind

    For your Sony A7, get the V6 IIs.
    And the 580EXII, get the V6 II.
    So you will need one of each.

    You just can't do it the other way around, i.e. Canon 5D and a Sony HVL flash.

    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".

    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) but not by X-TTL firmware versions:  PEN.A.001 NIK.A.001 OLY.A.001.  No schedule has been released yet for an "A" version firmware on the V6 (MK1). 

    Cactus RF60X / RF60 Firmware versions A04 and A03 currently ONLY works with PEN.A.001 NIK.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.

    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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