Photographers often use polarizing filters and graduated neutral density (ND) filters to reduce the amount of light entering the camera. While both of these filters can be beneficial, they serve different purposes and have different effects on the image. Knowing the difference between these two types of filters can help photographers make the most of their images. A polarizer is used to block light reflected from a surface, while an ND filter only darkens the entire scene. Polarizing filters can improve the color saturation of an image, while ND filters simply block light from entering the camera.
Polarizers are great for reducing reflections in bodies of water or even in wet rocks, while ND filters are better for landscapes with a high dynamic range. Types of ND filters include the graduated neutral density filter, which has an ND effect that extends to the middle of the filter, and the variable ND filter, which allows you to control the strength of the filter by rotating a part of it instead of buying several ND filters. Graduated soft-edge or hard-edge ND filters are easier to use for landscapes with a high dynamic range, as they correct and obscure only the bright upper half of the frame. Polarizers and ND filters are both considered to be some of the best filters for landscape and travel photography, as they reduce the dynamic range in high-contrast images, allowing photographers to capture more realistic and dramatic landscapes. Polarizers can also make the sky “stand out” and add texture to clouds by darkening them, thus highlighting the intense blue color of the sky and the shadows of the clouds. Neutral density (ND) filters and polarizing filters are often confused with each other but they serve two completely different purposes. Polarizers are colored filters that enhance colors of stones, shrubs, etc., while ND filters do not affect the color of an image.
They are both thin pieces of glass that are screwed onto the front of a camera lens. In conclusion, polarizing filters and graduated neutral density (ND) filters are two very different types of optical filters used in photography. While both reduce light entering into a camera lens, they serve different purposes and have different effects on an image. Polarizers can improve color saturation while ND filters simply block light from entering a camera. Polarizers are great for reducing reflections in bodies of water or even in wet rocks while ND filters are better for landscapes with a high dynamic range.