The Field Optics Research FVH-320 Outdoor Video Head replaces the FVH-300 with a few improvements. The FVH-320 is 2 ounces lighter, has a stronger quick release (QR) plate clamp, and now fits all Arca Swiss plates. The span of the clamp is wide enough to roll the plate into the clamp as well as slide it in. The handle can be placed on either side of the head to accommodate your prefer handedness.