There are indeed many different filters, but well, they usually do for different uses. If like me you mainly shoot cars, the only one you really need is the polarizer. To have a technical explanation google is your friend, but basically it is used to kill light reflecting on a given surface from a certain angle. You can rotate it in the position you prefer, to kill sky/clouds reflections on a windscreen, bonnet or on the sides of a car. Of course doing so it reduces the light coming in your camera :arrow: slower shutter speed, so especially with long focals a stabilizer becomes VERY handy, or a tripod, especially on cloudy days obviously.
The colored ones are just for fun IMO LOL.
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