Manfrotto has a new fluid head out for cameras up to 17 pounds. Manfrotto’s plate has become the defacto standard for smaller cameras. Here they keep the old plate, but have made a quick release mechanism for getting it (and your camera) on and off the head. Their big news is a new counter balance system that uses a cylinder charged with nitrogen gas. I had concerns that it might leak, but they say it won’t be a problem.