The lenses on my E500 regularly now go hazy. I can get them pretty bright with Maguirs plastex cleaner but the result doesn't last more than a week or so. I have tried a cleaner followed by a lens sealer but they still haze up again and next time I clean them I have to abrade off the sealer as well. Any tips on keeping them clear after cleaning (apart from hiding it in the dark). PS I use a small triangular detail sander with a cloth wrapped around the head to save on effort. Works well and doesn't spray cleaning paste everywhere.