How to use polarizing filter to improve photo quality in landscape photography.

For landscape photographers, polarizing filters are almost as essential as tripods. Polarizing filters are widely used, and the size far exceeds the weight to play a role. Few filters are really suitable for most scenes, but the circular polarizer may be the filter of ordinary landscape photographers and deserves a place in each equipment bag.

1. What is the function of polarizing filter?

Polarizing filters can enhance color contrast and saturation, provide more popular tones for your photos, and reduce the glare of incident light sources. Polarization filter is simple and practical.

Most polarizing filters will reduce the incident light by 1-2 order, which means that 1/2 to 1/4 of the light entering the camera usually passes through CPL.

In progress. Therefore, if you shoot in full manual mode, you need to adjust ISO, aperture or shutter speed to compensate for this.

Second, which scenes have the best effect with polarizing filters?

When using the polarizing filter, the sky photos will be obviously improved. The atmosphere itself and smog such as dust and smoke will lead to light scattering. By using a filter, accidental scattered light can be filtered out, leaving a more vibrant sky than your eyes. Clouds show more details and clearer boundaries, and the air is darker in blue, which essentially increases the contrast of the sky. Generally speaking, the tonal differences from the lower and upper atmosphere also become clearer. Even if the polarizing filter only makes the sky more beautiful, it is still an essential tool for landscape photographers.

However, when using polarizing filter and wide field of view, a special problem will appear, which is called "gradient sky". Location of light source (sun) and CPL

Rotation can create an effect, which makes the sky look like a separate light and dark zone, rather than a smooth transition. The wide-angle view that landscape photographers like is particularly eye-catching.

Anyone who shoots near a water body on a sunny day knows how difficult it is to capture the true color of water. When the sun comes out, it is almost impossible to try to capture details, such as the clarity of water or rocks and other submerged themes. Polarizing filters also help to reduce or eliminate glare formed on the water surface.

Third, how to choose a polarizing filter

If your lens diameter is 52, just match the filter diameter with the lens diameter.

Mm lens, then you need a filter suitable for this lens. As for other options, the quality of glass is really different, which will also affect the price. You can easily find a cheap polarizing filter, but how important is the image quality? Remember, the polarizer is in front of the lens. So any problems caused by inferior glass will not disappear. For example, the more expensive the glass, the less prone to glare and ghosting. Although high-end interchangeable lenses have special coatings to help reduce or eliminate these problems, these problems will only affect the quality of our photos.