CamDesign 3PC 40.5MM Snap-On Front Lens Cap/Cover for all DSLR lenses CamDesign 40.5MM Snap-On Front Lens Cap features an easy and rapid attachment/removal to any DSLR lens. It is designed to safeguard your front lens from any bumps and debris keeping your camera in its best condition. NOTE: This cap is compatible with all 40.5mm lenses. Please verify your camera's lens thread size before ordering. Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "Ø" (diameter) symbol. For example: Ø46 = 46mm lens thread size. All images Copyright CamDesign. All Rights Reserved. All trade names are registered trademarks of respective manufacturers listed.