Specification Brand : Sigma BulletPoint : Wide range including popular focal lengths for portraits BulletPoint1 : Focus Free / Ultra Thin / Wide Angle Z mount lens (135 full frame) BulletPoint2 : The lens recycle from disposable camera and transform it to a body cap lens. it could be one of the best weapon for street photography.The Fixed aperture and focus free makes sure you can capture the moments you want. BulletPoint3 : The lens does not have and does not need to focus, the focal length is 32mm,aperture is f/10, the depth of field is basically 1.6 meters away to infinity. BulletPoint4 : They are all remanufactured by hand and may have some small flaws (the lens may not rule out some small dusts, scratches, etc.), But each lens has been checked and adjusted, and the flaws will not affect the imaging and use. BulletPoint5 : Digital Camera Settings: Shutter w/o lens(ON) / Shoot without lens (ON) / Release without Lens (ON) BulletPoint6 : Mounting Type: Sony E Color : Black CompatibleCameraModels : E, X, Z CompatibleDevices : Camera CompatibleMountings : Sony E CustomerPackageType : Standard Packaging ExposureControlType : Manual ExternallyAssignedProductIdentifier1 : 198983636658 ExternallyAssignedProductIdentifier2 : 085126636654 ExternallyAssignedProductIdentifier3 : 0198983636658 ExternallyAssignedProductIdentifier4 : 0085126636654 FocalLengthDescription : Mirrorless 28-105mm FocusType : Auto Focus FormFactor : Mirrorless GpsrSafetyAttestation : 1 IncludedComponents : CASE, LENS HOOD LH878-07, FRONT CAP LCF-82 III, REAR CAP LCR II ItemDisplayDimensions_Diameter : 3.2 inches ItemName : 28-105mm F2.8 DG DN for Sony Mount ItemPackageDimensions_Height : 27 centimeters ItemPackageDimensions_Length : 15.1 centimeters ItemPackageDimensions_Width : 15.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : slr-camera-lenses LensDesign : Zoom LensMount : sony_e Manufacturer : Sigma Material : Plastic barrel with magnesium alloy sub-structure, Metal mount MaxAperture : 2.8 f_stop MaxFocalLength : 105 millimeters MaximumApertureRange : f2.8 – f22 MaximumFormatSize : APS-C MinAperture : 28 MinFocalLength : 28 ModelName : XLENS3210NZ ModelNumber : 636965 MountingType : Sony E NumberOfDiaphragmBlades : 12 NumberOfItems : 1 PackageLevel : unit PartNumber : 636965 PhotoFilterSize : 58 millimeters ProductDescription : Description: Focus Free Lens 32mm F/10 ( Z Mount). DIY products, disassembling machine optical resin lens restructuring, hard to avoid some small dusts and subtle scratches, do not affect the use.