New Firmware for Backward Compatibility with V6 II (version 2.1.001)

New Frmware is available for the Cactus V6 - version 2.1.001!

New Features:
- Added support for V6 II / V6 IIs (all firmware versions) and RF60 Master (with firmware version 2.00 or later):

  1. Remote power and group control
  2. Triggering within the x-sync shutter speed
  3. Relay commanded by TX
  4. Group sequence
  5. Remote shutter release

- Added POWER SYNC support in A-TTL mode when working with V6 II / V6
. Please note that not all flash models can support the POWER
SYNC mode. In the <CHOOSE PROFILE> menu of the V6, a "P" icon is
shown for supported flash models.

- Delay in seconds is now
: In the <DELAY> menu, choose <SET SEC> to
configure the delay timer from 1 to 99 seconds.

For more information please visit our Downloads page:

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", "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 and OLY.A.001.  No schedule has been released yet. 

Cactus RF60X / RF60 Firmware versions A01 and A02 currently ONLY works with PEN.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.

Cactus RF60 is now an off-camera TTL flash with firmware version 205 or later!

Metz M400 (for Fujifilm) is now supported on the Cactus V6 II (HSS and TTL).

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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