polarizers cuts down on reflections.
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The only downside is that they cut down on available light as well.
Scientifically speaking, they cut your light intensity in half.
But they do make certain colors pop a lot more too, which is a nice.
I find that greens and blues are the most effected.
They are the most expensive type of filter I've seen. But even at that, mine was only $20.
Play around with it.
I swear, I'm getting some stuff posted in here some day.
-fuse.