Main Features:1.Compatible for Camera size with 50mm Diameter lensB60 LensB70 Lens2.Inner screw for (5255586267727782mm) UVCPLND filter3.It is made of high quality anodized black aluminum (metal).4.Precise Thread and Bayonet Mount5.It allows for Hasselblad lenses to use regular threaded filter.Product nameLens Filter Adapter Ring Step Up Ring for HasselbladItem Specification:It is made of high quality anodized black aluminum (metal).Colour: Black.Compatible with:Lens Size:B50 Camera Lens: 50mmB60 Camera Lens: 60mmB70 Camera Lens: 70mmLens Filter size:Inner screw for (5255586267727782mm)UVCPLND filter, etc.The female thread to filter: B5052mm B5055mm B5058mm B5062mm B5067mm B5072mm B5077mm B5077mm B5082mm B6062mm B6067mm B6072mm B6077mm B6082mm B7072mm B7077mm B7082mmPackage Including:1pcs x Metal Filter Adapter Ring for Hasselblad