When starting photography I heard all this chitter chatter about filters, all these different types, sizes, pros, cons, etc.
There were UV, skylight, CPL's (the topic of today's post), ND, color, etc.
I started out using UV filters for protection, but then now I simply resort to lens hoods to protect my front element. If I'm caught in a sandstorm, maybe I'll throw on my UV filter.
The circular polarizing filter (CPL) is an incredibly useful tool to have handy in a kit.
It can cut reflections in glass and water, give skies a deep blue look, and also serve as a faux ND filter and cut a stop of light if conditions are too bright.
Here are just a few samples of what a CPL can do.
All of these were shot at similar settings with the only difference being a turn of the CPL filter