Photographer Steve Perry (from backcountrygallery) published a video demonstrating the use of a polarizing filter as well as some tricks and basic information every photographer should know.
Perry starts the video by explaining the importance of a polarizing filter and why it is not possible to recreate the same effect in Photoshop. Of course you should remember that a polarizing filter will reduce up to 2 stops of light but this isn’t such a big issue for nature photographers.
We have looked at different advantages of using polarized filters in the past including “How to Best Shoot Under a Mid-Day Sun” with photographer Bryan Peterson, “Tips for Shooting Through Windows On this video photog” with Gavin Hoey and “Photographing Waterfalls” Sarah Howard.
You can find many more Photoshop videos on LensVid’s Photoshop section.