9

All the popular radio TTL flash triggers, like PocketWizard or RadioPopper, seem to be only available in Nikon and Canon flavors. Are there any models capable of transmitting Pentax P-TTL data?

3

http://www.aokatec.com/

This radio trigger appears to support P-TTL and high-speed sync.

I found this in this dpreview forum thread: http://forums.dpreview.com/forums/readflat.asp?forum=1036&message=40799541&changemode=1

See also http://www.lightingrumours.com/aokatec-ttl-trigger-for-nikon-canon-sony-pentax-1875.

  • New product! Cool! – mattdm Mar 7 '12 at 17:29
  • I'd be happy to accept this answer, but the product is still "available soon". Oh well, let's wait some more... – Imre Apr 23 '12 at 20:05
  • 2
    I have a sample and will test it out this weekend. – mattdm Aug 16 '12 at 11:41
  • A review reveals it's a clever solution converting optical commands into radio signal and then back to optical. – Imre Sep 6 '12 at 6:37
4

The following radio-based flash triggering systems can communicate TTL for Pentax:

  • The Cactus X-TTL system with their V6II/IIs triggers can give you remote power control over TTL Pentax flashes, HSS sympathy triggering, and full TTL passthrough to an on-camera flash mounted on top of the trigger, as well as P-TTL with remote flashes.

  • Phottix's Odin II triggers.

  • Godox has XPro-P and X2T-P transmitters that offer P-TTL and HSS compatibility with the Godox X system. At this time (Nov 2019) however, the AD360II cannot be used in P-TTL/HSS off-camera, and the TT685C is the only TT685 model that can be firmware upgraded for off-camera P-TTL. The only P-TTL speedlights in the Godox lineup are the TT350-P and V1-P.

  • The Aokatec AK-TTL works something like a poor man's RadioPopper—it takes the light signals used by Pentax's wireless flash system and turns them into radio signals then translates back out the other end.

  • The Acon R930 seems to be using the hotshoe protocol to communicate TTL, since it uses all the pins/contacts on the flash hotshoe, but bridged over radio, but doesn't look widely available.

  • The Conanmark ABC TTL radio triggers have a Pentax version, but it doesn't look like it's widely available.

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