I realize that I need a polarizing lens, with my digital slr, I understand that I need a circular rather than linear lens (there is an article on Wickipedia about this). But there are so many to choose from...Some say that they are glass, does that mean that the others are plastic? Presumably plastic is a bad idea when I do lots of traveling? What about brass rings, are they important? The price range is significant, so I want to figure out what will work best. I have three lenses. The 18-55 mm and the 55-200 are both 52mm diameter. My macro lens is 55 mm diameter. I am thinking that it would make more sense to buy a 52 mm polarizing lens, as it seems that reflection is less of a problem in macro photos?
Any advice greatly appreciated.