Sigma TS-151 Tripod Socket (Arca-Swiss Mount) Stable, Balanced Support for Sigma Sports Telephoto Lenses The Sigma TS-151 Tripod Socket is a dedicated mounting accessory designed to provide improved balance and stability when using compatible Sigma Sports telephoto lenses on a tripod or monopod. Supplied as standard with the Sigma 70–200mm F2.8 DG DN OS | Sports, it features an integrated Arca-Swiss compatible foot for fast, secure mounting to a wide range of tripod heads. By shifting the support point from the camera body to the lens, the TS-151 helps reduce strain on the mount while delivering smoother, more controlled handling—especially important for longer focal lengths and extended shooting sessions. Precision Fit & Professional Compatibility Engineered specifically for Sigma Sports optics, the TS-151 ensures a perfect mechanical fit and reliable performance without the need for third-party adapters. Compatible Lenses Sigma 70–200mm F2.8 DG DN OS | Sports Sigma 200mm F2 DG OS | Sports Sigma 500mm F5.6 DG DN OS | Sports Integrated Arca-Swiss Mount The built-in Arca-Swiss compatible profile allows direct mounting to compatible tripod heads, enabling quick setup, secure locking, and easy transitions between shooting positions without additional plates. Sigma TS-151 Tripod Socket A dedicated support solution for balanced, confident telephoto shooting.