Royal Marine
Secure design, machined aluminum adapter: A reliable adapter fully precision-machined from high-quality aircraft-grade aluminum.Screws into 67mm threads: Works with any port featuring 67mm threads, including all macro ports and several flat ports for mirrorless cameras.Clip lock keeps the lens from flipping out: Secure latch prevents the lens from accidentally swinging or flipping out while you are actively shooting.Spring tension keeps the lens from flipping back: Clever spring mechanism keeps the lens firmly held back out of the way, preventing it from falling back in front of your port when not in use.