ENHANCED COMPATIBILITY - Specifically designed for Vespid, Catta Ace, and Gnosis lenses, ensuring seamless integration and optimal performance across your entire lens collection. PRECISION EF-MOUNT - Provides a secure and reliable EF-Mount connection, maintaining image quality and focal length accuracy for professional video production needs. COMPLETE TOOL KIT - Includes 4x EF Bayonet, port caps, shims set, and screwdriver, offering everything needed for lens maintenance and adjustments right out of the box. OPTIMIZED IMAGE QUALITY - Maintains the original image quality and aperture of your lenses, ensuring consistent and professional results in every shooting scenario.