The NC-200-500V2 Replacement Lens Collar for Nikon AF-S 200-500mm f/5.6E ED VR Lens from Kirk Enterprises attaches directly to the rear barrel of the lens where the original collar was and locks into place by turning the locking knob. The lens foot is made with an Arca-type compatible double-dovetail design, which adds quick release functionality to the bottom of the foot and allows other accessories to attach to the top of the foot. Also, the 6061-T6 aluminum lens has a durable black anodized finish.
By replacing the foot originally supplied, it gives the lens a lower profile and a lower center of gravity. This provides better balance and stability when the lens is placed on a gimbal-type head. Located on the bottom of the foot are two safety stops, which prevent the lens from accidentally slipping if a clamp was partially opened. Kirk Enterprises recommends using the optional LS-2 Lens Support Bracket, which produces less stress on the camera's mount.