Learning new flash

Was wondering why Sigma EF610 DG Super is not supported or allowed to be manually found? There are so few Pentax P-TTL flashes I would have expected Cactus to have all of them accounted for. If it can not be learned by the V6, what needs to be done to the setup for it to function correctly? It will be firing remote RF60 flashes


  • Hi @baysidegraphics

    If you can't learn a particular flash model using the Learning Program on the V6, it is likely to be a digital-only TTL flash. Only the ones with Analogue TTL flash models can be learned.  FYI most of the newer flash models now runs purely in digital TTL protocols.

    Thank you for your understanding.
    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) and 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 info@cactus-image.com.  At Cactus, we listen. 
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