Hi,


I am planning to get a circular polarizer for my 18-200mm f3.5-5.6 lens. I already mounted a UV filter on it since day 1 and I never take the UV filter off. I wonder what would happen if I leave a circular polarizer filter on the lens just like how I left the UV filter on it?

I am hoping I don't need to change filter (to save the hassle) and it can be on the lens to protect it and at the same time giving me polarizing function when I need it. When I do not need polarizing function, can I just turn it off? (for example, turn to a position where it behaves the same as normal see-through glass)