I have a question concerning flash sync speeds.
My understanding is that flash sync speeds up to 1/1600s are possible with the 645DF + Schneider 110mm LS + Profoto Air.
My testing has shown less. Tests show syncing up to a maximum shutter speed of ONLY 1/800s.
Schneider 110mm LS lens
Leaf Aptus II 7
Profoto Air Transceiver in 645DF hotshoe
Profoto Air Transceiver plugged in sync port of Profoto Pro-B2 pack
As soon as the shutter speed is set 1/3 stop faster than 1/800s, a black frame results.
The million dollar question.....
Why can't flash be synced up to 1/1600s AS ADVERTISED?
Is this functionality only limited to use with the vertical grip? That would seem odd to me.