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Specification
Brand : K&F Concept
BulletPoint1 : Allows to use Praktica mount Camera Lens to NEX 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 : Manual adapter without electrical contacts or aperture control, supports focus to infinity. Auto diaphragm/auto-focus is not allowed.
BulletPoint5 : Verify your lens and camera mount: You can find your lens/camera mount in the len's/ camera's original user manual, or find your lens/camera on the manufacturers' website and under the product specifications look for “mount type”. If you have any question or problem about adapters, please contact us freely for help.
Color : Black
CompatibleDevices : FE 28mm F2^Sony
CompatibleMountings : Sony
ExternallyAssignedProductIdentifier : 7432136080060
ExternallyAssignedProductIdentifier1 : 4589551453399
ExternallyAssignedProductIdentifier2 : 0700424383887
ExternallyAssignedProductIdentifier3 : 700424383887
FocalLengthDescription : 30 mm
FocusType : Auto Focus
IncludedComponents : Protective case and protective caps (Front and Back)
ItemName : K&F CONCEPT Lens Mount Adapter Compatible for Praktica Mount Lens to NEX Lens Camera Body
ItemPackageDimensions_Height : 4.8 centimeters
ItemPackageDimensions_Length : 18.8 centimeters
ItemPackageDimensions_Width : 13.6 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : camera-lens-adapters
Language : english
LensDesign : Prime
LensMount : sony_e
MagnificationMaximum : 42 multiplier_x
Manufacturer : Shenzhen Zhuoer Photograph
Material : Metal
MaxAperture : 2.8 f_stop
MaxFocalLength : 49 millimeters
MinAperture : 22
MinFocalLength : 85 millimeters
ModelName : fisheye lens
ModelNumber : KF06.166
MountingType : Sony
NumberOfItems : 1
OpticalZoom : 0.14 multiplier_x
PackageLevel : unit
PartNumber : KF06.166
PhotoFilterThreadSize : 55 millimeters
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 : 2015-07-10T07:00:00.000Z
RealAngleOfView : 105 degrees
Size : 55mm
StreetDate : 2015-07-20T00:00:01Z
Style : Canon
SupplierDeclaredDgHzRegulation : not_applicable
WarrantyDescription : 3-year limited warranty
WaterResistanceLevel : not_water_resistant