Polarizer

[maggieddd]

Sorry that I am asking such a basic question, but I've never used a Polarizer.  
On a digital camera does a polarizer give you any benefit?  Can I just get away without it in RAW?
What situations do I want to use it in? What weather?

Thanks for any tips

[francois]

Read this article. Digital or film camera makes no difference.

HTH,
Francois

[howard smith]

The article is very good for landscapers.  Other photogrpahers might be interested in polarizing the light source(s) and/or the camera.  You can get some useful and interesting effects.