Specification Brand : K&F Concept BulletPoint1 : Allows to use Pentax PK mount Camera Lens to L/M Lens camera. BulletPoint2 : High quality provides great protection and shock absorption for your lenses, water-resistant. BulletPoint3 : 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. BulletPoint4 : Package includes: 1 X Ring Adapter Mount BulletPoint5 : 24-Month Fotodiox Warranty Color : Nipple Cover 02-249 CompatibleDevices : Cameras CompatiblePhoneModels : 38MM CompatibleWithVehicleType : Bicycle Configuration : Standard ExternallyAssignedProductIdentifier : 4589551453726 ExternallyAssignedProductIdentifier1 : 847372010974 ExternallyAssignedProductIdentifier2 : 0847372010974 ExternallyAssignedProductIdentifier3 : 00847372010974 FocalLengthDescription : 67 mm FocusType : Auto Focus IncludedComponents : Fotodiox Lens Mount Adapter ItemDisplayWeight : 249.5 grams ItemName : K&F Concept Lens Mount Adapter for Pentax PK Mount Lens to L/M Lens Camera Body ItemPackageDimensions_Height : 6.8 centimeters ItemPackageDimensions_Length : 17.6 centimeters ItemPackageDimensions_Width : 13.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-adapters Manufacturer : Shenzhen Zhuoer Photograph Material1 : Metal Material2 : Aluminum ModelName : Fotodiox ModelNumber : KF06.165 MountingType : Tabletop Mount NumberOfItems : 1 PackageLevel : unit PartNumber : KF06.165 ProductDescription : Features: Allows focus infinity Elegant clear appearance Compact and high quality metal material High Precise to ensure the perfect fit Diaphragm control of the lens is set manually Instructions for use: Attention: 1.Manual adapter without autofocus or aperture ring. 2.Skillful installation, don't too much force. 3.Adapting an APS-frame lens to a full-frame camera may generate vignetting, some cameras could correct it by adjusting APSC. 4.Adapting a full-frame lens to an APS-frame camera provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle. And it will magnify the focal length by 1.6 on Canon, 1.5 on Nikon and Sony, 2.0 on M4/3 camera Infinity focus position: The position of the infinity mark [∞] of the 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. No Lens Attached' - Warning Message Appears: 1.If your camera indicates "lens is not properly installed", please modify the camera settings: 'Menu' -> 'Setup' -> 'Release w/o Lens' -> 'Enable' (Exact naming and location may change depending on camera model). If your lens does not have a manual aperture control ring, it will be maximum aperture by default.If you want to adjust the aperture but without manual control ring, then you need to remove the adapter ring and adjust the aperture on the camera. 2.Set camera "release shutter without lens" to enable when using the adapter for the first time, or the camera will fail to recognize the lens and the shutter may not be released. ProductSiteLaunchDate : 2015-07-10T00:00:00.000-07:00 Size : Nipple size 02-249 StreetDate : 2012-06-13T00:00:01Z Style : Standard SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 WarrantyDescription : All products carry a 2 Year/24 month Limited Warranty from Fotodiox from date of purchase. Our limited warranty provides coverage for defects in manufacturing only. Our limited warranty expressly excludes coverage for excessive wear and tear and/or physical/accidental abuse, loss or theft. The limited warranty not applicable on consumable items, clearance items as marked, and items bought from unauthorized dealers.