55mm Camera Lens Snap-on Front Lens Cap (For Camera Lenses with 55mm Filter Threads) 55MM NOTE: This cap is compatible with all 55mm 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 "" (diameter) symbol. For example: 55 = 55mm lens thread size. Compatible with the NIKON (D600 D7000) DSLR Cameras with the 24-85mm f/3.5-4.5G ED VR AF-S, 18-200mm f/3.5-5.6G AF-S ED VR II zoom Lens. Compatible with the CANON EOS (60D 7D) DSLR Cameras with the EF-S 18-200mm f/3.5-5.6 IS, EF 28-135mm f/3.5-5.6 IS USM zoom Lens. Compatible with the Sony