Polarising filterThe pole is still one of the most-used filter in photography. This filtering has a reduction of reflections off glass and water surfaces or paints. At the same time increase the color saturation and increase the contrast. Befindende behind glass objects (shop windows, car windows) are visible again. The polarising filter is the only filter, whose effect not later via image processing software can be achieved. The reflections must at the time of the recording can be hidden behind this is no longer possible. The CPL filters reflections, increases the color saturation and increases the contrastGray filter ND FilterGray Filter, even ND filters (Neutral Density = Neutral Density), reduce the entire visible spectrum of light evenly over the entire filter. Colors and contrast are not affected. Filter factor 4 extends the exposure time/aperture extension to the aperture value 2Filter factor 8 extends the exposure time/aperture extension to the aperture value 3Filter factor 16