Canon Canon 82mm Snap-On Lens Cap for EF Lenses E-82U MicroFiber dielectric-wrapped wire networks for the fastest transients, maximum clarity, definition and presence Ergonomically contoured, heavy-duty body shell is easier to grab and offers hassle-free insertion and removal every time. MultiTwist impedance-balanced construction for maximum signal transfer and noise rejection. Heavy-duty black nylon mesh jacket provides maximum durability and visual appeal. Multiple gauge high and low frequency wire networks for accurate, natural sound reproduction.