Specification Brand : Digital Nc BulletPoint1 : High Definition (Beveled Design) +10 Close-Up Lens BulletPoint2 : High-Index / Low-Dispersion 2 Element Optical Glass BulletPoint3 : Fully Multi-Coated & Threaded BulletPoint4 : Anti-Reflection Coating BulletPoint5 : High Speed Auto-Focus / Infrared Compatible ExternallyAssignedProductIdentifier1 : 0021331244437 ExternallyAssignedProductIdentifier2 : 021331244437 FocalLengthDescription : 52 mm FocusType : Auto Focus ItemName : Sony Alpha DSLR-A850 10x High Definition 2 Element Close-Up (Macro) Lens (77mm) ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-diopters Manufacturer : Digital Nc ModelName : Digital Nc ModelNumber : 5823669537 PartNumber : CL10SONA850-77 ProductDescription : Optics close-up lenses are for quick and easy close-up photography. The close-up lens is screwed on to the front of a lens which has a 77mm filter thread. This lens has two achromatic elements to correct chromatic aberrations. They do not degrade the high optical performance resulting from your cameras natural lens. ProductSiteLaunchDate : 2011-06-07T04:34:25.507Z