The new Canon speedlight 600 ex rt is a going to change the industry...period. The radio transmitters are already built into the speed-light with the ability to transmit the ettl signal. Pentax....you're on you're last straw as far as I'm concerned.
http://neilvn.com/tangents/2012/05/01/review-canon-speedlite-600ex-rt/
edit: For the record. I'm happy with my Pentax gear, but they really are falling waaaaaaayyyyy behind. The new Canon speed-lights, the new 5D mark iii, Nikon's 800/D4 and the SB900 are just small examples of this. To their defense, Pentax clearly labels themselves as an "enthusiast" brand while the heavy hitters are obviously "pro" so I guess we can't complain. Sorry to hijack the thread.
Last edited by Deiberson; 05-22-2012 at 05:31 AM.