NEW FEATURE: AF-assist Continuous Light (AF CONTINUOUS)

edited November 2016 in V6 II FAQ
Quite a number of people have been waiting for this - a manual switch for the V6 II's AF-assist LED, which is especially useful for cameras that do not send an AF-assist signal to the hot shoe, such as Fujifilm and Olympus.

Firmware version 1.1.005.

The new feature will be found under MENU > PREFERENCE > AF-CONTINUOUS

How the AF Continuous Light works

Once switched on, the AF-assist LED will stay on until the camera takes a shot, where it will momentary switches off the LED before the shutter opens, and a couple seconds after the shot is taken, the LED will switch on automatically and ready to assist the camera focus on the next shot.

This feature can be set separate on either transmitter and receiver unit.

FYI we will soon release the new AF-CONTINUOUS feature on the Sony version V6 IIs.

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".

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. 


  • edited November 2016
    I have tried the AF-CON feature and think it should have been implemented differently.

    The AF-assist LED consumes battery power and may be irritating to a human subject. It therefore should not be on for prolonged periods of time.

    When the camera is not focusing, there is no point in having the AF-assist light turned on anyhow.

    A better implementation, AFAIC, would have been to enable the AF-Assist light manually (e.g., long-press on the dial) for a certain period (perhaps configurable from 3s - 10s).

    Given the current "(almost) always on" behaviour and the need to enter the preferences menu to turn on the AF-assist light on/off, I don't see myself using that feature.

    Please consider a more practical implementation.

    EDIT: I initially reported a problem with the receiver's AF-assist light not synchronising with the AF-assist light of the transmitter. I could replicate the problem once, but not anymore subsequently, so I have removed that remark.

    However, it is still a problem that in order to turn off "AF CON" one would have to visit all receivers and manipulate their preferences manually in order to stop them from having their AF-assist lights on.

    I suggest a "AF MAN" option in which the receivers are synchronised with the transmitter. Only if the transmitter's AF-assist light is activated manually, the receivers should follow. This approach would make it easy to let the receivers be non-intrusive, unless their AF-assist lights are really actually needed.
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