Cactus X-TTL for PENTAX is available now!


Cactus & PENTAX

“After a few months of hard work since the first wave of X-TTL firmware releases, we are excited to announce the Pentax version is NOW available on the Cactus V6 II!

Besides retaining the revolutionary cross-brand abilities of remote power control and wireless HSS of Canon, Fujifilm, Nikon, Olympus, Panasonic and Pentax flashes simultaneously, the new system-specific X-TTL firmware for Pentax adds wireless TTL for Pentax flashes both on and off-camera.

Wireless P-TTL

The Pentax system is unique where only Pentax system flashes, Cactus RF60 and RF60X flash can be triggered by a Pentax camera for wireless TTL.

Features at a glance

1. Cross-brand wireless wireless wireless manual power and zoom manual power and zoom manual power and zoom control control control with HSS/FP with HSS/FP with HSS/FP support of Canon, Fujifilm, Nikon, Olympus, Panasonic, Pentax and Cactus wireless flashes;1
2. Wireless Wireless ireless P-TTL for Pentax system and Cactus wireless flashes; 2
3. Two Exposure Locks offer consistency with the conve Two Exposure Locks nience of wireless TTL;
4. Rear-curtain Sync curtain Sync curtain Sync is supported in both on and off-camera.
5. Worksseamlessly with Cactus RF60X and RF60 seamlessly with Cactus RF60X and RF60 seamlessly with Cactus RF60X and RF60 flash to support remote HSS, TTL, as well as power and zoom control.

New Protocol and Upcoming Firmware Releases

Due to the implementation of X-TTL firmware for Pentax, a new wireless protocol has been adopted. 3 This new protocol will be adopted in the X-TTL firmware of all camera systems in future.

With the new protocol in place on the Pentax X-TTL firmware, the firmware for the remaining camera systems, i.e. Olympus, Nikon and Canon, will be completed by the first quarter of 2018. Olympus will be the first of three. Stay up to date for the latest releases on X-TTL’s microsite:”


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