Steve warned us to be careful with carrying the 500PF by the foot. It has a useless quick release lever and they ain’t kidding. I just received a 500PF, attached it to my D4s and appropriately carried the rig outdoors by the foot when lo and behold my thumb inadvertently hit the quick release button leaving me only holding the foot. The rest of the rig hit the ground with a big thud. Fortunately, no damage, but the next thing I did was replace Nikon’s trick foot with the Wimberley replacement foot. So, the morale of this story, if you own or are considering purchasing the 500PF, is either carry it by the barrel or replace that darn foot. Just saying . . .