The Wimberley AP-452 replacement foot in Arca type is designed for Nikon 400 mm f/2.8 AF-S (I and II) and 600 mm AF-S II telephoto lenses, providing a secure and stable mounting solution. This flat foot is made from durable materials, reduces the lens profile for improved handling comfort, and is compatible with devices such as the Wimberley Sidekick. It features standardized threaded holes with 3/8 inch-16 and 1/4 inch-20 for direct attachment to monopods or tripods, eliminating the need for additional quick release plates. Pre-drilled holes support flash mounts from brands like Wimberley, Really Right Stuff, and Kirk Enterprises, enhancing accessory versatility. Included locking screws prevent accidental loosening, and all necessary hardware and tools are provided for easy installation. Designed for reliable performance under demanding photographic conditions, this replacement foot ensures a precise fit and optimized setup for long-distance shooting.