I recently purchased the A119S for my wife along with a CPL filter. We were cleaning our cars yesterday and I removed the cam to clean the inside of the windshield. Since I had the cam out I thought I would also clean the lens and filter. The wife asked me about the filter so I explained it to her and went to demonstrate how it worked on our computer screen. I did this same test when I first got the filter to see how it worked. As expected rotating it darkened the image on the computer screen. When I went to do the demo for my wife the filter no longer darkens the image. Rotating it CW gives the image a slight blue tint to it and rotating it CCW gives a brown tint. The image no longer darkens at all as it did when I first purchased it. Anyone have any idea what is going on here?