Specification Brand : OPTURA HD OPTICS BulletPoint1 : Doubles Focal Length of Lenses (4-Elements) BulletPoint2 : Multi-Coated Optical Glass with Anti-Reflection Coating BulletPoint3 : Magnification 2x Elements/Groups 4 BulletPoint4 : 【4】 Please make sure to order the correct size, otherwise it will not fit your camera lens. Your lens size will be printed under the lens cover or written somewhere on the lens. BulletPoint5 : 【5】30 day warranty period, can be returned or exchanged at any time. Color : 55mm-37mm CompatibleMountings : Canon EF ExternallyAssignedProductIdentifier1 : 847372038329 ExternallyAssignedProductIdentifier2 : 0847372038329 ExternallyAssignedProductIdentifier3 : 00847372038329 FocalLengthDescription : 2X TELECONVERTER FocusType1 : Auto Focus FocusType2 : Manual Focus IncludedComponents : 2X TELECONVERTER ItemName : 2X HD OPTICAL CONVERTER for CANON EF 75-300MM F/4-5.6 MAKES LENS in to 150-600MM ItemPackageDimensions_Height : 0.39 inches ItemPackageDimensions_Length : 3.14 inches ItemPackageDimensions_Width : 3.14 inches ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-adapters Manufacturer : OPTURA HD OPTICS ModelName : Fotodiox DLX Stretch Lens Mount Adapter - Minolta Rokkor (SR / MD / MC) SLR Lens to Fujifilm Fuji X-Series Mirrorless Camera Body with Macro Focusing Helicoid and Magnetic Drop-In Filters ModelNumber : SKY0901 NumberOfItems : 1 PartNumber : OPTURA-2X ProductDescription : A 2X teleconverter, also known as a teleconverter or tele-extender, is a lens accessory used in photography to increase the focal length of a lens. It effectively magnifies the focal length of the lens by a factor of 2x, hence the name "2X teleconverter". ProductSiteLaunchDate : 2024-03-28T02:09:07.740Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 WarrantyDescription : 1 YEAR