The lever itself is well made, fits perfectly on my Canon Lens ran. Who now expects miracles will be disappointed: Because you can zoom even not really with the lever. It's basically like having your hand directly on the lens. If the camera is not even on a tripod, zooming is even much more still jerky.
But the worst is the fact that it's not possible to use the lever due to its size in order to use him to pull focus. It then either the part is half a centimeter above the lens on the front (which also looks pretty stupid) and secondly the lever blocked then the zoom lens. The promises that you can use the lever for the sharpness are so absorbed in air.
It's a pity because I had ordered the same 2 pieces full of optimism and / or naivety. And return it with this provider, unfortunately, not free - hence this has been a small bust.