Y19A Tripod Mount Ring for Canon 70-200 F28L USM/70-200 F28L IS USM/70-200 F28L IS II USM Lens Support Collar - Regular It is made of imported aviation aluminum and precision processed by a high-precision CNC machining center, which is strong, stable and wear-resistant; the inner flocking cloth surface will not scratch the lens body, and the surface is electroplated and painted._x000D_ An accessory that enhances stability when using a telephoto lens and shooting with a tripod. Install the lens and fix the lens to the tripod through the tripod socket under the tripod mount. In addition, you can rotate the camera around the lens by loosening the rotation lock knob of the tripod mount, and you can switch between portrait and landscape composition without tilting the pan/tilt. Attaching and removing the tripod._x000D_ Turn the locking knob counterclockwise to align the arrow with the dot. Then pull the knob outward to open the loop._x000D_ Place the lens in the tripod ring when the ring is open. Loosen the locking knob of the tripod ring, you can turn the camera and lens mounted on the tripod, and freely switch between horizontal and vertical shooting directions. Turn the camera to the desired position and tighten the locking knob. The tripod ring can be used on the ring tripod head._x000D_ _x000D_ Types:A-Regular_x000D_ Colour:Creamy white_x000D_ Material:Aluminum alloy_x000D_ Size:100-400mm_x000D_ _x000D_ Package Contents:_x000D_ 1 x Tripod Mount Collar Ring_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_