If any of you watched 'In This World', directed by Michael Winterbottom and D.O.P'd by Marcel Zyskind, do you have any idea of the camera grips they used for their PD150's. It seems very stable with the 2 hand grips and i've been trying to find them but in vain. I am starting to gear up for a documentary shoot and would very much like to have those same grips.