Specification AutofocusTechnology : Phase Detection Brand : Sigma BulletPoint : Panasonic wide conversion lens VW-LW4307M BulletPoint1 : Ultra wide angle zoom lens offers 122 degree view along the diagonal axis BulletPoint2 : 12-24mm focal length BulletPoint3 : f4.5-5.6 maximum aperture BulletPoint4 : Super Multi Coating reduces flare and ghosting BulletPoint5 : Internal focus ring CompatibleCameraModels : Nikon Digital SLR Cameras CompatibleDevices : nikon coolpix 5700 CompatibleMountings : Sony E CompatibleMountings1 : Nikon DX CompatibleMountings2 : Nikon FX ExternallyAssignedProductIdentifier : 4984824411821 ExternallyAssignedProductIdentifier1 : 085126200343 ExternallyAssignedProductIdentifier2 : 0085126200343 ExternallyAssignedProductIdentifier3 : 00085126200343 ExternallyAssignedProductIdentifier4 : 0085126789442 ExternallyAssignedProductIdentifier5 : 00085126789442 ExternallyAssignedProductIdentifier6 : 0999994095119 ExternallyAssignedProductIdentifier7 : 00018208251063 FocalLengthDescription : 12-24 millimeters FocusType : Auto Focus FocusType1 : Manual Focus FocusType2 : Auto Focus FormFactor : DSLR FormFactor1 : SLR FormFactor2 : DSLR GpsrSafetyAttestation : 1 IncludedComponents : Built in Petal Shaped Lens Hood, Sigma Four-Year ItemName : Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Minolta and Sony SLR Cameras ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 17.6 centimeters ItemPackageDimensions_Width : 12.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lenses LensDesign : Zoom LensMount : nikon_f Manufacturer : Sigma Corporation MaxAperture : 5.6 unknown_modifier MaxFocalLength : 24 millimeters MaximumApertureRange : F3.5 MaximumFormatSize : Full Frame MinAperture : 4.5 MinFocalLength : 12 millimeters ModelName : 200205 ModelNumber : 200205 MountingType : Sony E NumberOfDiaphragmBlades : 7 OpticalZoom : 2 multiplier_x PartNumber : 200205 Pattern : Redrive PhotoFilterSize : 62 millimeters ProductDescription : The large angle of view of the Sigma 12-24mm f/4.5-5.6 EX DG ASPH Zoom (122 degree super wide angle of view at 12mm along the diagonal axis) is ideal for shooting indoors as well as landscape photography. It has a variable angle of view from 122 degrees to 84.1 degrees. Four Special Low Dispertion (SLD) glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. Two pieces of glass mold and one-piece hybrid aspherical lenses offer excellent correction for distortion as well as all types of aberration. By effective arrangement of lens elements and advanced technology, this lens has super compact dimensions of 100mm full-length and 87mm maximum diameter. It is equipped with an Inner Focusing System that will keep the length of the lens unchanged while controlling aberration. Features: First zoom lens that has 122 degree diagonal angle of view at 12mm focal length Variable angle of view from 122 degrees to 84.1 degrees Equipped with 4 piece SLD glass elements and 3 piece aspherical lenses producing a high level of optical performance Inner Focusing System insures the length of the lens remains unchanged whilst controlling aberration Minimum focusing distance of 28cm at all focal lengths. EX DG Series - the ideal lens for digital SLR cameras Lens Technology Explained: ASP (Aspherical Lens)The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a ... ProductSiteLaunchDate : 2004-07-21T00:00:01-00:00 RealAngleOfView : 122 degrees Size : Nikon StreetDate : 2002-09-18T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 45121603 ZoomRatio : 7:1