Different Camera Lenses Explained

Can anyone explain filters camera lens?

I am new to photography and am curious to know about lens filters, since not learned about it in class (I'm taking a photography course at a local college). Can anyone explain the use of different filters and are used and when should be used.

In digital there are some major brands you will find a use for. Polarizer lets in light at an angle, which is 15 effects that I am very lazy to write. A ND filter darkens everything, lots of uses there. The ND grad, darkens the sky to sunsets or hills where the sun is super bright and the hills Pitch Black are to avoid the silhouette. The UV is to protect both the physical and UV radiation in plastics. She has little effect on the image. And it sub-categorize it from there. Filters in general, change the light before they hit the plane. If a simple mask or changing the rays of light as a polarizing effect.

Using Camera Lenses : What is Depth of Field?