TTL without Boundaries

Cross-brand Wireless TTL Flash Triggering System

The X-TTL System

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Cactus V6 II / IIs X-TTL firmware is compatible with Canon, Fujifilm, Nikon, Olympus, Panasonic, Pentax, Sigma and Sony camera and flash system.

Cross-brand Wireless TTL

The X-TTL firmware gives photographers unprecedented flexibility. The need for matching flashes with the same camera system for on and off-camera TTL flash photography is over – TTL without boundaries.

On-camera Flash with TTL

Cactus V6 II works with an on-camera fill flash with cross-brand TTL capability.

Wireless Operation

Simply press one of the group buttons to cycle the group through automatic-TTL mode, manual mode and OFF.

Wireless Multi

Let your creativity flow even in a wireless flash setup. The X-TTL firmware supports wireless Multi flash operation.

Camera & Flash Compatibility

Camera System Compatible Flash System
Canon
Canon, Fujifilm, Olympus, Nikon & Sigma
(Remote TTL only works with Canon system flashes.
Cross-brand TTL is not supported.) 		RF60X
(firmware prefix A.xx);

RF60
(firmware prefix A.xx).
Fujifilm
Canon, Fujifilm, Olympus, Nikon & Sigma
Sigma Canon, Fujifilm, Olympus, Nikon & Sigma
Sony Canon, Fujifilm, Olympus, Nikon, Sigma & Sony
Nikon
Canon, Fujifilm, Olympus, Nikon & Sigma
Olympus / Panasonic M43 Canon, Fujifilm, Olympus, Nikon & Sigma
Pentax Canon, Fujifilm, Olympus, Nikon, Sigma & Pentax
(Remote TTL only works with Pentax system flashes.
Cross-brand TTL is not supported: )

* Use V6 II for Sigma, Canon, Nikon, Olympus, Pentax and Fujifilm system.
* Use V6 IIs for Sony system.

High Speed Sync (HSS/FP)

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The main benefits of High-speed Sync is two-fold: keeping a shallow depth of field at high shutter speeds, and freezing fast motion.

Power Sync

Boosts flash contribution above x-sync shutter speed. Perfect for extreme conditions where Normal HSS is not powerful enough.

Rear Curtain Sync

Flash is fired just before shutter closing. The X-TTL firmware supports rear curtain sync automatically.

Exposure Lock

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Flash power lock

Lock flash power output after a desired TTL exposure is achieved. Perfect for consistency in repeat shooting.
(Tip: press and hold the OK button to activate)

Flash compensate

Store a desired flash exposure that will automatically adjust in response to changes in camera ISO, aperture and shutter speed.

V6 II / V6 IIs Specifications

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Wireless mode

Transmission method:
2.4GHz radio frequency
Number of channels:
16
Slave groups:
4 (A, B, C &D)
Max. effective distance:
100M
Operation mode:
TTL and M
Remote AF assist light:
Supported
Remote zoom control:
Supported

Exposure Control

Cross-brand TTL:
Supported (refer to Cross-brand Compatibility Table)
Cross-brand high-speed sync (HSS / FP):
Support sync speed up to 1/8,000 second
Sync mode:
Normal HSS, Rear Sync and Power Sync
(note: Canon TTL doesn't support rear curtain sync.)
Wireless Multi Flash:
Only on Cactus RF60, RF60X and V6 II with Canon and Fujifilm system flashes
Flash exposure lock:
FLASH POWER LOCK and FLASH COMPENSATE

Extra Feature

Multi Master:
Supported up to 20 photographers firing the same set of flashes at their own power setting
Group Sequence:
Trigger groups of flashes in a sequence
Sport Shutter:
Synchronize shutter release time with the master camera
Delay Timer:
Manually adjust flash delay time from 1ms up to 999s
Absolute Power:
Use a simple power setting scheme that makes it easy to see the light intensity differences across different flashes
Remote Shutter Release:
Optional with shutter release cable
Relay Mode:
Use the V6 II or V6 IIs as a radio remote shutter release while maintaining synchronisation between camera and flash

Operation environment

Operation temperature:
-20°C to +50°C
Camera voltage handling:
Up to 6V
Flash voltage handling:
Up to 300V

Dimensions and Weight

Dimensions:
V6 II: 72mm (L) x 72mm (W) x 42 mm (H)
V6 IIs: 72mm (L) x 72mm (W) x 42 mm (H)
Weight:
V6 II: 96g
V6 IIs: 89g

Power Source and Firmware Update

Power input:
Power input: 2 x AA battery, 3V, 50mA, 0.15W,
mini USB 2.0, DC input 5V
Mini USB port:
Optional power supply and firmware update with Cactus Firmware Updater

Notes:

  • Use Cactus V6 II for Canon, Nikon, Olympus, Pentax, Fujifilm, Sigma system camera and flash.
  • Use Cactus V6 IIs for Sony system camera and flash.
  • For Fujifilm, Olympus and Panasonic cameras, Cactus recommends removing hot shoe metal spring plate for consistent communication between the camera and V6 II. Click here for the tutorial video.



Cross-Brand TTL Compatibility
Flash System (RX)

Canon
E-TTL

Fujifilm
TTL

Nikon
i-TTL

Olympus /
Panasonic TTL

Sigma
SA-TTL

Pentax
P-TTL

Sony
P-TTL

Cactus
RF60 / RF60X
Camera system
(TX)

Canon

TTL / M

M

M
(no HSS)

-

TTL / M

Nikon

TTL / M

-

Olympus /
Panasonic M43

TTL / M

-

Fujifilm

TTL / M

-

Sony

TTL / M

TTL / M

Sigma

TTL / M

-

Pentax

M

TTL / M

-
  • Applies to both on and off-camera setups.
  • Support cross-brand HSS in all version except Pentax system flash. 
  • With the exception of Pentax system flashes due to special timing requirements so it must be paired with a Pentax camera in order to support HSS.
  • Canon system camera doesn't support remote rear curtain sync.


Firmware Version Prefix

Canon
Fujifilm
Nikon
Olympus /
Panasonic
Pentax
Sony
Sigma
Cactus flash

CAN.A.xxx

FUJ.A.xxx

NIK.A.xxx

OLY.A.xxx

PEN.A.xxx

SON.A.xxx

SIG.A.xxx

RF60 : A.xx
RF60x: A.xx
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