Panasonic DMW-LW55 55mm Wide Conversion Lens for Panasonic FZ7, FZ30 and FZ50 Digital Cameras Converts FZ7 from 36mm to 25mm Converts FZ30 from 35mm to 24.5mm 3 elements in 3 groups 55mm Filter accessory size Lens adapter DMW-LA2 must be used to fit FZ7