Well I've been disappointed by our resident flash expert not picking up on this, mentioning no names (Nigel).
It's just come to my attention that Yongnuo have a flash transmitter that works with their YN560 MkIII and IV. The YN560-TX
Looks like a nice bit of kit but even nicer is the fact that you can control 6 flashes, and when I say control I mean remotely control output and head zoom, individually, for up to 6 flashes.
Even more impressive is that you could give a second togger another TX and it will activate the flashes also i.e. at a concert with pre mounted flashes you could have two cameras tripping the same setup.
Well I thought it all sounded pretty good especially considering the good price of these things and a good reputation to boot.
Currently 31 beer tokens on Amazon. The MkIV flash is currently £56 at the same place. I'm thinking 4 flashes fully controlled from an on camera unit for £255 sounds pdg.
No mention of Pentax compatibility but the Pentax group on FakeBook are reporting happy flashing with the Canon version.
'Flash Expert', ha ha great to see the sense of humour is still strong around here !
I use automatic flash for most of my stuff, and for the manual work I'm committed to the Cactus system, so Yongnuo hasn't held any interest for me. I do follow things on various forums and for sure, many report that they're a great budget option.
Richard, only yesterday there was a report on PentaxForums of successful HSS wireless triggering with the Shanny and Acon R930 triggers. Really this is about as budget as you could ever expect, given that the triggers need to use a digital protocol plus extra pins in order to get the cameras to generate a trigger signal.
The 560Tx is great! I use one to fire off two head units, both with individual power settings and zoom settings also. The 560Tx can also fire off their standard trigger as well that can be used as a strobe remote trigger also
My outfit: K5 gripped - Sigma 17-70mm - Sigma 105mm - Pentax 18-55mm WR - Tamron 70-300mm - Pentax F 50mm f1.7 - Sigma 10-20mm f3.5 - Metz 48 AF1 - 2 x Cactus V2 triggers - Fully portable mobile studio and some mobile strobist studio stuff !