It sure does make a difference. If your lens is autofocus then you need CIRCULAR. Otherwise linear. If you have different lens sizes it is best (I think) to get a filter holder such as Cokin with different adapter rings for each lens. Then buy just one polarising filter and you can use it on any camera.


Cokin

Have a look here too
Using a polarising filter to improve your images

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The world needs smoothing out.

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