Nice review. My question has to do with using a red filter to reduce the red and blue hues that appear once you are below about 15 feet. I believe that a filter will help even though this is supposed to compensate somehow for being under water. The underwater pictures I have found on the web are not remarkable. I experimented with and without a red filter for my GoPro camera and the increased definition with a filter is quite remarkable and I am thinking it may translate over to this camera too.So, who would make the best red 40.5mm filter for deep underwater use?Thanks.