My favorite thing about Leofoto's replacement feet for my Canon lenses is the QD socket. This is my new favorite way to carry my gear. That said, even without the QD I still would have purchased this for my new RF 70-200 IS f/2.8L Z (zed) lens for the integrated Arca plate. This replacement slides on and off just as easily as the original. It is a bit larger than the Canon foot, but that gives you a little more latitude for adjustments on the tripod, and a better hand hold while on the move. I own a Leofoto lens foot for my 100-500, my 600 f/4, and now this lens. I also owned the version for my Canon 100-400L mark II until I sold that lens. They've all been perfect. I wouldn't hesitate to recommend them to anyone.