Specification Brand : Tide Optics BulletPoint1 : AVOID EXTRA FILTER PURCHASES - Spare yourself from acquiring additional filters when getting a new lens with a different diameter. BulletPoint2 : STURDY ALUMINUM BUILD - Crafted from durable anodized aluminum, each Lens Filter Adapter Ring outlasts plastic counterparts. BulletPoint3 : EXPLORE MORE OPTIONS - Discover additional TIDE OPTICS camera accessories to elevate creativity and enhance both photography and videography. BulletPoint4 : CRUCIAL SIZE GUIDANCE - The first number is the lens thread size, the second is the filter size. Smaller first numbers denote a step-down ring. BulletPoint5 : EASY ATTACHMENT/DETACHMENT - Effortlessly screw on and off for seamless handling and swift adjustments. BulletPoint6 : Camera Mount: C-mount(1" / 25.4mm diameter) ExternallyAssignedProductIdentifier : 7427255651871 ExternallyAssignedProductIdentifier1 : 840979105364 ExternallyAssignedProductIdentifier2 : 0840979105364 ItemName : Tide Optics 49mm to 82mm Step-Up Lens Adapter Metal Ring for Camera Lens Filters - Compatible with All 49mm Camera Lens & 82mm UV CPL ND Diffusion Effect Filters. ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-adapters MagnificationMaximum : 0.7 multiplier_x Manufacturer : Tide Optics Material : Aluminum ModelNumber : 4982mm NumberOfItems : 1 PartNumber : 4982mm PhotoFilterEffectType : other PhotoFilterThreadSize : 49 millimeters PowerSourceType : Corded Electric ProductDescription : Step up down ring adapter camera lens filter ProductSiteLaunchDate : 2024-01-13T11:59:24.255Z Size : 49-82mm SupplierDeclaredDgHzRegulation : not_applicable WarrantyDescription : 2 Year Warranty WaterResistanceLevel : water_resistant