Polarizer filter

I first bought polarizer filter in 2006 but got chance and patience to use it only in 2009!!!...
just few photos to show the polarizer filter effect on reflections

1) The first photo shows reflection of coulds on water. By turning the polarizer filter we can see the pebbles under water.


2) No reflection in first photo, you can see the time.

3) Reflection reduced in first photo and you can see things clearly under water