Thank you for viewing! This is the F-Foto tripod mount "LC-S100400k" specifically for the SIGMA 100-400mm F5-6.3 DG OS HSM Contemporary lens. It was used to attach the lens to a tripod, as the lens itself does not have a tripod mount. When using a telephoto lens, supporting the weight of the lens with a tripod, in addition to the camera body, enhances the overall stability of the equipment, allowing you to take sharp, blur-free photos. This tripod mount is particularly convenient because it has an integrated Arca-Swiss compatible plate, allowing it to be directly attached to compatible ball heads. 【Product Features】 * Compatible Lens: SIGMA 100-400mm F5-6.3 DG OS HSM Contemporary * Improved Stability: Supports the weight of the telephoto lens with a tripod, reducing stress on the camera mount. * Arca-Swiss Compatible: The base plate is compatible with the Arca-Swiss standard, allowing for quick attachment and detachment from many ball heads. * Lightweight and Compact: Designed to be easy to carry. * High-Quality Metal Construction: Sturdy construction to securely support your valuable equipment. 【Condition】 The item has been used infrequently and is in excellent condition with no noticeable scratches or stains. There are no functional issues. 【Included Items】 All items shown in the images. * Tripod Mount Body Recommended for those who take photos with telephoto lenses, especially those who want to capture birds, aircraft, landscapes, etc., without camera shake. Please feel free to ask any questions you may have in the comments.