Specification Brand : K&F Concept BulletPoint1 : Material : High quality and compact. Made of brass and aluminum (not plastic). 100% Brand New Color: Black BulletPoint2 : Lens : For Konica AR mount lens BulletPoint3 : Camera : For Fujifilm X FUJI X mount X-A1,X-A10,X-A20,X-A2,X-A20,X-A3,X-A5,X-M1,X-E1,X-E2,X-E2S,X-E3,X-T1,X-T2,X-T3,X-T10,X-T20,X-T30,X-T100,X-Pro1,X-Pro2,X-H1 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. BulletPoint6 : See manufacturer's website for compatibility. CameraFlash : No Flash Color : black CompatibleMountings : Canon EF CustomerPackageType : Standard Packaging ExposureControlType : Automatic ExternallyAssignedProductIdentifier : 6936069218435 ExternallyAssignedProductIdentifier1 : 725211207412 ExternallyAssignedProductIdentifier2 : 7109158848373 ExternallyAssignedProductIdentifier3 : 0725211207412 ExternallyAssignedProductIdentifier4 : 00725211207412 FocalLengthDescription : 600 millimeters FocusType : Manual Focus IncludedComponents : 2X Teleconverter for Canon ItemName : K&F Concept Lens Adapter Ring for Konica AR KAR to Fuji X Fujifilm X FX Mount X-A1 X-A10 X-A20 X-A2 X-A3 X-A5 X-M1 X-E1 X-E2 X-E2S X-E3 X-T1 X-T2 X-T3 X-T10 X-T20 X-T30 X-T100 X-Pro1 X-Pro2 X-H1 ItemPackageDimensions_Height : 8.382 centimeters ItemPackageDimensions_Length : 5.08 centimeters ItemPackageDimensions_Width : 8.128 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-adapters LensDesign : Fixed Zoom LensMount : canon_ef LightSensitivity : 200-6400 Manufacturer : K&F Concept MaxAperture : 5.6 f_stop MaxFocalLength : 1200 MinAperture : 6.3 MinFocalLength : 300 ModelName : tc-x20 ModelNumber : K&F Concept OpticalZoom : 2 multiplier_x PartNumber : K&F Concept ProductDescription : Note: 1.If your camera indicated "lens is not properly installed", please modify the camera menu settings. 2.Usually called the release the shutter the lens is not installed", you can modify the settings to allow. Specifically refer to the camera manual 3.Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate while using this adapter.There is no electrical contacts in the adapter ring. Full manual operation, manual focus, manual iris adjustment can be achieved with body manual exposure, aperture priority exposure.In this case "stop-down mode" will need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body.You can shoot in Manual or Aperture Priority Mode. Before use, set your camera Menu: "Shoot without lens". ProductSiteLaunchDate : 2019-09-02T06:52:54.153Z ShootingModes1 : Automatic ShootingModes2 : Manual Size : QY AR-FX Style : 2.0x SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 45121600 ViewfinderType : Electronic WaterResistanceLevel : not_water_resistant ZoomRatio : 2:1 ZoomType : fixed