Hi All, I'm waiting for my X20 to arrive. Someone recommended to get a 0.9 (3-stop) Neutral Density Filter to compensate the relative slow shutter speed (1/1000 second) when the aperture is wide open when shooting under bright daylight. Now I can only find 40.5mm NDFs online. So, the question is for X10 owners, do you have any experience on fitting NDFs to your camera? Does 40.5mm fit, or do I have to get a 52mm adapter and filter? Thanks!