Foto4easy JL-23 Lens Collar Tripod Mount Ring for Sigma 100-400mm F5-6.3 DG DN OS (E/L Mount) Lens Sony FE Mount Sigma 105mm f/1.4 DG HSM Art Lens,Bottom with Quick Release Plate for Arca-Type Clamp - FOEASY, FF-RJ010

• This JL-23 Lens Collar Tripod Mount Ring is designed for Sigma 100-400mm F5-6.3 DG DN OS (E/L Mount) Lens Sony FE mount Sigma 105mm f/1.4 DG HSM Art Lens. The bottom of the lens ring is an 80mm quick release plate with 1/4" and 3/8" screw holes Compatible with Arca-Swiss tripod ball head, panoramic head and clamp. The tripod mount ring mount on the tripod, it helps you fix and balance your tele lens which is heavy or long lens hanging off the front of camera. Made of aviation aluminum materials, CNC precision machining,built-in non-slip patch to protects your lens. The net weight of the tripod mount ring is about 166g, inner diameter is about 92.5 mm, width is about 18mm.