Can anyone recommend a wireless off camera flash device that supports high speed shutter (1/1000 ideally)? TTL is not important. I have the Cactus v5 and they work well, but the camera (G6) sees them as a flash and limits the shutter speed. When I use my Metz on camera, I can use HSS/FP to get flash at faster speeds. I could use a long cord, but I'd much prefer wireless. Optical slave works with high speed and is amazing for studio work, but not so good for me on location. YMMV. The Aokatec optical repeater looks interesting, as does Paul Buff's Cybersync. Radio poppers don't mention any Pany compatibility. Same issue with PWs - I can't find info on Pany compatibility. I think I'm aware of the options (but I could be wrong), so what I'm really looking for is anyone who can say that they have product X and it works with Pany cameras for wireless high speed off camera flash. Of course if there is a setting on the G6 I missed, that would be even better.