ITEM NAME:M39 to M42 /39mm to 42mm Lens Adapter Ring, Made of CNC Machined Aluminum with img *{margin:0;padding:0;.M39 to M42 lens adapter ring. Adapter ring, lens adapter ring, M39 to M42 lens adapter ring. Male Thread: 39mm. Female Thread: 42mm. Material: Aluminium alloy. 1 x Lens adapter ring. People always bought together with.
