Specification Brand : ADAPTER RING BulletPoint : SERIES C ADAPTER RING DJ BulletPoint1 : LOT OF APPROXIMATELY 57 ADAPTER RINGS BulletPoint2 : VARIOUS BRANDS AND VARIOUS SIZES BulletPoint3 : Corrosion-Resistant Hard Anodized Finish BulletPoint4 : Please note : If your camera indicated "lens is not properly installed", please modify the camera menu settings.Usually called the release the shutter the lens is not installed", you can modify the settings to allow. Specifically refer to the camera manual BulletPoint5 : Please note : Infinity focus position:the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity. ExposureControlType : Manual ExternallyAssignedProductIdentifier : 6971634249162 ExternallyAssignedProductIdentifier1 : 0703508598993 ExternallyAssignedProductIdentifier2 : 703508598993 IncludedComponents : Fotodiox Premium Product ItemName : CINE RAPTAR Lens 17MM FITS 13MM F2.5 TIFFEN Series C ADAPTER RING DJ Fast N Free ItemPackageDimensions_Height : 0.75 inches ItemPackageDimensions_Length : 4.25 inches ItemPackageDimensions_Width : 4.38 inches ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-adapters Manufacturer : ADAPTER RING ModelNumber : 498462 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : NONE ProductDescription : TIFFEN SERIES C ADAPTER RING DJ. IN VERY GOOD USED CONDITION. ProductSiteLaunchDate : 2020-06-05T20:41:05.753Z ShootingModes1 : Aperture Priority ShootingModes2 : Manual Size : QY M42-FX Pro StreetDate : 2020-06-15T00:00:01Z SupplierDeclaredDgHzRegulation : unknown WarrantyDescription : 12 Month Warranty WaterResistanceLevel : not_water_resistant