Filtering is another very important element of photography which diffrentiates between a good photograph and an extraordinary photograph. Some of the diffrent types of filters are as follows:
* Color compensation filter - These correct color shifts - available in 6 basic colors
* Diffusing filters has glass that is mottled or etched to break up the definition of the image slightly. They also conceal details and can help to creat halos around subjects
* Fog filters cut down on both colour saturation and contrast
* Light balancing filters - These help to balance the kind of light that is being used.
* Neutral Density filter can be used to limit the depth of field to a narrow zone. They are also used to limit the amount of light entering the camera
* Polarizing filters - Daylight is partly polarized. Polarizing filter allows light through one plane only. Polarizing filters absorb quite a lot of light and you will need to adjust the exposure by about 1 1/3 stops
* Ultraviolet filters - Reduce the bluish tint caused by UV radiation
* Yellow filters block the path of blue light, magenta blocks green and cyan filter blocks red light
* Graduated filters are toned over a part of the area with the remainder of the area clear
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