Ok-today we have tested the D800 with the HCam HSS Flash at 1/8000sec.

It works flawlessly down to the shortest time. One thing you need to know:
To be able to use the shortest sync time you have to set the camera to 1/320th sec Fast/Auto FP Mode otherwise even in manual the remotecontrol in the hot shoe will set the camera to a 1/250 sec.

We also tested the flash at the1/1600sec with a M645DF and a P65+ and a profoto trigger, this also worked perfectly. Will try to do a combination of the separate flash trigger with the flashes and the various MF bodies next.

Will be in London for a few days fro thursday until sunday so if anyone wants to meet we could have a pint somewhere..... !