The Kiwifotos Lens Plates are ergonomically shaped and very precisely manufactured from solid aluminium alloy. The lens plates provides a stable base for continued shooting. The plates are anodized to an scratch-resistant black satin finish. And the screws are made of high quality stainless steel. You have alarge / long lens plate require a longer lens. 

The Kiwifotos KF-75 lens plate is designed to take the place of the original tripod collar foot of Sigma 400mm f/5.6, Canon 400mm f/5.6, 70-200 f/4, 80-200mm f/2.8, 200mm f/2, 300mm f/4, 200mm f/4 Micro, 300mm f/2.8, 400mm f/4.5, Nikon 300mm f/4.5, and Tokina 300mm f/4 lenses. It converts the collar to make it directly compatible with Arca-type quick release clamps, without the need for additional quick release plates.