I used a polarized (CPL) filter to take this picture. The picture below show what the photo looks like without the filter. With the filter you can see the American Flag inside the window. You can’t see the American Flag when I take the filter off because the reflection from the sun is so strong. The results are obvious.[attachment=1:5a2saxai]_MG_5174.JPG[/attachment:5a2saxai][attachment=0:5a2saxai]_MG_5173.JPG[/attachment:5a2saxai]