CP Filters

[mpphoto12]

Thanks this makes sense. But how will i know how to rotate the front? im still a little troubled about the point of it rotating. And to asnwer the first question the 1d Mk III .

[Richard Lane]

Think of rotating the front of the filter just like you turn the focusing ring on the lens. You turn it until you are happy with the effect. If you turn it too far and don