Fotodiox 52mm Filter Thread Macro Reverse Mount Adapter Ring for OM 4/3 (Four thirds) Camera, Fits Olympus E 3, 5, E30, 620, 600, 520, 510, 450, 420, 410,E 400,E 300, Panasonic Lumix DMC L10, L1

Best for extreme Macro photography, with MAX magnify ratio up to 8:1 (3:1 with 50mm Lens) Bellows extend from 40mm to 150mm with locking thumb screw. All metal construction for heavy duty use Built-in Tripod Socket for seamless sticking 24 Month Manufacture Warranty