FocusFoto Metal Tripod Collar Mount Ring 80mm for Tamron 70-180mm F/2.8 Di III VXD (A056) Lens, Bottom with 1/4" & 3/8" Thread Screw Mount Dovetail Quick-Release Plate for Acra-Swiss Type Tripod

Introduction:Brand New! High Quality!! 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.It features Arca-compatible dovetail plate which allow you attach your lens to Ball Head, Clamp or Panorama Head of Arca-Swiss standard. Reserved multiple 1/4"-20 &  3/8"-16 thread screw holes at the bottom for attach lens to tripod directly. Made of aviation aluminum alloy and CNC precision machining, anodizing surface treatment, right weight and strong building. Specifications:Made by metal with very high qualityThe UNC (Unified National Coarse Thread) : 1/4" & 3/8" Compatibility: Arca-Swiss StandardRing inside diameter: 80mm/3.15inchBaseplate Length: 70mm/2.75inchBaseplate Width: 38mm/1.49inchColor: blackNet Weight: 144g/5ozCompatible with:For Tamron 70-180mm F/2.8 Di III VXD (A056) Lens Package Includes:1 x Lens Tripod Mount Ring

• 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.
• It features Arca-compatible dovetail plate which allow you attach your lens to Ball Head, Clamp or Panorama Head of Arca-Swiss standard.
• Reserved multiple 1/4"-20 & 3/8"-16 thread screw holes at the bottom for attach lens to tripod directly.
• Made of aviation aluminum alloy and CNC precision machining, anodizing surface treatment, right weight and strong building.
• Compatible with: For Tamron 70-180mm F/2.8 Di III VXD (A056) Lens