Some photographers insist that everything must be captured exactly as it was in nature, while others like the effects and improvements they can get from a variety of filters.
A polarizer is not much different from polarized sunglasses. It does not color the picture, but it reduces glare and reflection. As a result, natural colors appear stronger and more dynamic in your photos. The most obvious place that can be seen is in the sky, where a hazy sky can become rich, saturated blue. If you want to get more information about the density filters then you can browse the web.
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The difference between using the polarizer and a blue filter is that the polarizer uses the natural color of the sky, while the color filter adds artificial colors. A blue filter, such as white clouds turn a shade of blue, while the polarizer leaves clear and white clouds.
The polarization filter also increases the contrast between the sky and clouds, making the formation of clouds stand out more clearly against the background. An attractive cloud formation can be enhanced to become a feature of the real impact on your photo.
Polarizing filters can be rotated on the lens to adjust the bias level. It is important to practice with your polarizer to obtain the most natural effect.