Haoge Lens Collar Foot Tripod Mount Ring Socket for Sigma 50-500mm f4.5-6.3 f4-6.3, 80-400mm f4.5-5.6 EX, 120-300mm f2.8 EX, 120-400mm f4.5-5.6, 150-500mm f5-6.3 Lens built-in Arca Plate Replace TS-31

The LMR-SM31 Tripod Mount Ring from Haoge is designed for Selected Sigma Lenses. It features Arca-compatible dovetail which allow you attach your lens to Ball Head, Clamp or Panorama Head of Arca-Swiss standard. Reserved 1/4" and 3/8" screw holes at the bottom for attach lens to tripod directly. Built-in strap hole for carry. Quick Release System Designed with Arca-compatible dovetail, photographer could set up camera and lens quickly. Improves Lens Balance The ring secures your lens to the camera's tripod. Thumbscrews Tighten And Loosen Ring Having thumbscrews control the ring make it easy to adjust the tripod ring on the go. Gives Your Camera Setup Better Balance The ring adds stability to your camera and lens. Due to its weight, when the lens is mounted with a camera on a tripod, the center of gravity is shifted to the lens. The ring attaches to the tripod and can be shifted to adjust the balance. Compatible with: Sigma APO 50-500mm F4.5-6.3 DG OS HSM Lens Sigma APO 50-500mm F4-6.3 EX DG HSM Lens Sigma APO 50-500mm F4-6.3 EX RF HSM Lens (Only those with a removable tripod socket) Sigma APO 80-400mm F4.5-5.6 EX OS Lens Sigma APO 80-400mm F4.5-5.6 EX DG OS Lens Sigma APO 120-300mm F2.8 EX DG OS HSM Lens Sigma APO 120-400mm F4.5-5.6 DG OS HSM Lens Sigma APO 150-500mm F5-6.3 DG OS HSM Lens ( Note: it can't be used for other lenses ) Package Included: 1 x Haoge LMR-SM31 Tripod Mount Ring for Selected Sigma Lens