NOTE: Please verify your camera's lens thread size before ordering.Compatible With: This kit is compatible with 52MM lenses only. Lens sizes vary regardless of camera brand or model. 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) symbolPackage Content:1* 52mm K&F Concept Ultraviolet UV filter for Canon 600D Nikon D5200 D300 D3100 D3200Function1.Reduce UV rays from entering the lens and striking the film.2.Help protect the surface of the lens from scratches， smudges， dirt， fingerprints， accidental damage and other hazards.3.Reduce haze and improve contrast to your video and digital images by minimizing the amount of ultraviolet (UV) light. Feature1.High quality and brand new 2.Imported optical glass， top level of transmittance 3.Metal sealing ring， better tightness， avoids fall or loose4.Ultra slim 5mm frame， made of aircraft grade magnalium 5.Superfine frame polished with strict surface treatment6.Laser engraving fonts， never worn or fade7.Meet Environmental Standards of RoHSApplicationThe filters are double-threaded， so you can stack your lens cap and other accessories as needed.Especially useful in areas of high altitude， snow， or beach， eliminating the undesirable blue cast.