Nikon Nikon Rt-1 Tripod Collar Ring | Tripod Heads

The Nikon Rt-1 Tripod Collar Ring Enables The Af-S Nikkor 70-200Mm F/4G Ed Vr Lens To Be Rotated Freely Through 360-Degrees When Attached To A Camera Body. The Ring Helps Improve Tripod Balance And Allows Quick, Smooth Switching Between Vertical And Horizontal Orientation When Shooting In Portrait And Landscape Format.