Nikon AF-S NIKKOR 500mm f/5.6E PF ED VR super telephoto prime lens
Amazon.com : iShoot Lens Collar for Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR, CNC Machined Lens Tripod Mount Ring Support Bracket Holder, Bottom is ARCA Fit Quick Release Plate for Tripod Ball
Amazon.com : Nikon 200-500 mm/F 5.6 AF-S NIKKOR E ED VR Lenses : Electronics