The use and classification of photography filters Tips for using photography filters

First, the use and classification of photographic filters

1. Protective filter

The use of protective filters: anti-fouling, anti-scratch, and also has a certain moisture-proof effect. For example, the commonly used UV filter, also called ultraviolet filter, can effectively filter out ultraviolet rays to improve the clarity of photos, provide a more realistic and gorgeous picture, and at the same time play a certain protective role. In the digital age, there is little difference between it and protective glasses.

2. Scenery filters

(1) Purpose of polarizer/PL mirror: Eliminate specular reflection, enhance contrast and color. The market has two specifications: wire offset and round offset, and the former is rarely used.

(2) The purpose of the ND filter: reduce the shutter speed, smooth the water surface, and make the clouds appear dynamic, suitable for landscape photography.

(3) The purpose of the hard-edged GND medium gray gradient mirror: to reduce the brightness of the sky, and balance the exposure of the sky, the ground, and the ocean. Suitable for landscape photography. Generally speaking, the hard-edged ND gradient mirror has a relatively obvious dividing line, which is suitable for shooting subjects with a clear horizon.

(4) The use of the soft-edge GND neutral gray gradient mirror: the soft-edge neutral gray gradient mirror is easier to control, and the gradient line between light and dark is not obvious. It is suitable for shooting mountains where the transition is not very uniform and sharp.

(5) The purpose of the RGND reverse ND gradient filter: Different from the GND gradient ND filter, the reverse gradient filter is the darker the closer to the middle, which can effectively block the high-light objects in the center of the screen and balance the exposure of the upper, lower and middle parts . Perfect for shooting at sunrise and sunset.

3. Special category

(1)) The use of color filters: to change the color of the picture, but due to the powerful post-production space of digital photos, such filters are rare.

(2) Cooling and warming filters are used to correct the color performance, or to change the atmosphere of the photo by changing the white balance. Similarly, the digital age has basically lost its original meaning of use.

(3) The purpose of the close-up lens: to shorten the focusing distance of the lens and enlarge the object to be photographed, it is suitable for macro photography, but generally speaking, the picture quality is not very good.

Second, the use of photographic filters

1. The use of filters requires greater clarity

The most basic technical requirement of landscape photography is to shoot clear images of nature. Don't just focus on the foreground or distant view, or you won't get enough clarity. Use manual focus more often in order to obtain a more accurate focusing effect.

2. Selection of different filters

The selection of filters is different for cloudy or bright sky and sunny sunny day. Use different filters to shoot sunshine, cloud, rain, snow, fog, etc., and use climate features to enhance the atmosphere of the photo, thereby conveying Different psychological feelings of landscape works.

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