Hi guys,   I'm pulling focus tomorrow on a HPX500 shoot. We have a shot where we need to start on a medium CU or a medium shot of an actor sleeping in bed, probably from straight above, camera to subject distance approximately 4-5'. We need to boom down as he snores and travel right up to his mouth, about 5" away from the front element of the lens. The shot needs to be in focus the whole time, and my stop will probably be around a T2.8 or T4.   The DP wants to use a 10mm Digiprime which clo