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.
Replacement for original F (WIII) , 100% fits for Canon and does have same construction.
 
Specifications:
Made by metal with very high quality
The UNC (Unified National Coarse Thread) : 1/4" & 3/8" 
Compatibility: Arca-Swiss Standard
Ring inside diameter: Front 80mm/3.15inch - Back 90mm/3.54inch 
Baseplate Length: 80mm/3.15inch
Baseplate Width: 38mm/1.49inch
Color: black
Net Weight: 163g/5.75oz
Compatible with:
For Canon RF 100-500mm F4.5-7.1 L IS USM Super-Telephoto Lens
 
Package Includes:
1 x Lens Tripod Mount Ring