Specification Brand : YDPSY BulletPoint1 : Automatic aperture synchronization】 Supports fast aperture adjustment on the body and lens with aperture ring for improved ease of use BulletPoint2 : Support anti-shake function】 Support lens image stabilization and body image stabilization , effectively eliminate ghost and blur problems caused by motion shooting or jitter BulletPoint3 : Support for EXIF signal transmission】 EXIF can record lens model and shooting data , support the body to view aperture , shutter , exposure compensation and other information BulletPoint4 : Support for in-machine firmware upgrade】 Adopt native lens firmware mode , the original protocol is converted according to the formula , firmware upgrade can be completed in the camera BulletPoint5 : Support Autofocus】Supports all focusing methods, and almost all functions in the menu can achieve automatic photo focusing and video focusing. It supports AF-C, AF-S, AF-F, and MF focusing methods, including 3D focusing and other focus selection, as well as scene recognition of faces, human eyes, animals, cars, and airplanes. BulletPoint6 : Please feel free to contact us if you have any questions. CompatibleDevices : for insta360 X4/X3 ExternallyAssignedProductIdentifier1 : 0774336321855 ExternallyAssignedProductIdentifier2 : 774336321855 IncludedComponents : 1*Quick release bracket ItemName : Megadap EFTZ21 Lens Adapter Mount Autofocus Camera Mount Adapter Ring Compatible with Nikon Z Mount ZFC Z9 Z8 Z7II Z7 Z6II Z50 Compatible with Canon EF Mount Lens Black#2 ItemPackageDimensions_Height : 3 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-adapters Manufacturer : YDPSY NumberOfItems : 1 PartNumber : EFTZ21 ProductDescription : Megadap EFT21 Lens Adapter Mount Autofocus Camera Mount Adapter Ring Compatible with Nikon Z Mount ZFC Z9 Z8 Z7II Z7 Z6II Z50 Compatible with Canon EF Mount Lens Black#2 ProductSiteLaunchDate : 2024-05-11T09:48:39.192Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 WarrantyDescription : 30 DAYS