Description: 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. Right weight and strong building by third party. 100% fits Sigma and does have same construction. Specifications: Made by metal with very high quality The UNC (Unified National Coarse Thread) is 1/4" Ring diameter: 71mm Ring thickness: 4.5mm Color: black Weight: 180g Suitable For: SIGMA APO 70-200mm F2.8 II EX DG MACRO HSM Package Includes: 1 * Lens Tripod Mount Ring

The UNC (Unified National Coarse Thread) is 1/4". Made by metal with very high quality. 100% fits Sigma and does have same construction. 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.

Maximum Weight Recommendation: 180 Grams. Compatible Devices: Camera. Brand: Hersmay. Color: Black. Manufacturer: Hersmay. Date First Available: June 23, 2020. Is Discontinued By Manufacturer: No. Best Sellers Rank: #29 in Tripod Lens Mount Rings. Customer Reviews: 4.4 out of 5 stars 126 ratings 4.4 out of 5 stars. Item model number: NSAF237. : B07DVKZBXG. Item Weight: 6 ounces. Package Dimensions: 5.87 x 5.55 x 2.72 inches.