Many point-and-shoot cameras, including the Panasonic LF1 that I nearly always carry with me, lack lens hoods. If I could glue a thin disk magnet to the front of the structure around the lens, and attach a ferromagnetic ring to a manufactured or makeshift hood, it would be easier to avoid flare. For the LF1, and the equivalent Leica camera, an outside diameter of 32mm and an inside diameter of 23 mm would be ideal. Does anyone know where this kind of magnet might be available? Other P&S cameras would obviously need different measurements, so that it might be useful to other readers if a variety of such rings could be found. I'm not concerned about how this might affect the camera's resale value, as I intend to keep it.