How should a novice photographer choose a filter? Filter details teach you to choose!

A photographic filter is a photographic accessory. Proper use of photographic filters will make photos show better effects and bring different visual enjoyment. There are many kinds of photographic filters. How should a photographer choose a photographic filter?

Other filters (optional)

Filters are indispensable equipment in digital photography. Whenever you buy any single-lens digital camera, you will recommend a filter to protect the lens. It is generally called a UV mirror, but it is actually wrong. UV mirror is not to protect the lens, but to protect the lens. In addition to these, there are many commonly used filters, such as polarizers to reduce reflection and increase photo saturation, close-ups of macro photography and so on.

Protective glasses (not necessary)

Protective glasses are used to protect the lens coating and prevent dust, debris and water from damaging the lens coating. Will not affect the light, color, etc. It has a certain protective effect and is cheap.

Ultraviolet mirror (optional)

UV mirror, also called ultraviolet filter, is generally colorless and transparent. Due to coating, it will appear purple or purplish red when viewed from the side. The function of UV mirror is to filter ultraviolet rays with wavelength below 400 nm, which has no influence on other rays. In addition, it also acts as a protective mirror for lenses at some time to prevent the lens coating from being damaged.

UV mirror is suitable for shooting in seaside, mountains, snowfields and open areas, which can effectively weaken the blue tone caused by ultraviolet light; However, you don't need to use a UV mirror at night or in an indoor shed. At the same time, it can also eliminate the interference of ultraviolet rays on photosensitive elements, and better improve the clarity and color reproduction effect.

Photographers should pay attention to the problem of lens color cast when purchasing UV lenses, and install them in the camera to see if the wide-angle end and telephoto end will affect the focus.

CPL polarizer (necessary for landscape photography)

CPL polarizer is also a kind of filter mainly used for scene shooting, which can eliminate non-metallic reflections (such as water reflection, glass reflection, cloud reflection, etc.). ), improve color saturation (eliminate polarized light to make colors brighter), and reduce light to a certain extent (reduce polarized light and slightly weaken light).

1, eliminating non-metallic reflection

When shooting the water surface, the polarizer eliminates the reflection of the water surface and can see a shallow underwater picture; When shooting white clouds, the polarizer eliminates the reflection of white clouds, making them more layered; The problem of metal reflection cannot be solved by polarizer.

2, improve color saturation

When shooting the blue sky, the polarizer will darken the picture to improve the saturation; Reduce reflection, reduce light and improve color saturation when shooting flowers.

3. Reduce man in the mirror appropriately.

Because the polarizer eliminates the reflection and the light is dimmed by 1-2 exposure, it has a certain dimming effect.

Photography lovers mainly choose square or circular polarizers, and the square has a wider scope of application, which is the trouble point of the bracket; The circle is easy to use, but different lenses have different calibers, so the use is limited, depending on personal choice.

Gradient gray filter (necessary for landscape photography)

When taking landscape photos, you need to pay attention to the level of the horizon; When shooting scenery photos with large light ratio, it is necessary to pay attention to the exposure requirements that the sky is not overexposed and the ground is not underexposed; Therefore, the gradient gray filter is a great weapon to shoot the landscape with large light ratio.

The gradient gray filter has a gray gradient layer from transparent capitals on the lens, which can meet the shooting requirements that the sky is not exposed and the ground is not underexposed. Suitable for sunrise and sunset, beach and coast, ground sky, sea and sky, or keep some details. Simply put, it is to balance the difference of ambient light and better show the light and dark details of the picture.

When photographers choose GND, there are mainly squares and circles, just like PL mirrors.

Neodymium mirror (necessary for slow door photography)

The exact name of nd subtraction mirror is medium gray density mirror, which is used to be called subtraction mirror or ND mirror in photography circle. The function of reducing mirror is to reduce the light entering the camera, which plays an irreplaceable role in shooting long exposure works.

Three elements of exposure control the exposure of the camera. When creating slow-door photography, the shutter speed is slow and the exposure time is long, which is the premise. In addition, because of noise and image quality, the sensitivity generally uses lower ISO parameters, so the problem of controlling light is adjusted by aperture. Because the exposure time of slow door photography is long, in order to keep the total exposure unchanged, the aperture can only be reduced. When the aperture is reduced to F22 and still overexposed, the exposure time can only be reduced, and the effect of slow-door photography is not obvious.

The variable diameter mirror is to solve the problem that our parameters are too exposed when they are adjusted to the extreme. Different gears of neodymium mirror reduce different exposure. ND2, ND4, ND8, ND 16, ND32, ND64, ND 128, ND256, ND5 12, ND 1000 can reduce the light exposure from 1 to/kl.

Photography enthusiasts recommend ND 1000 to reduce the exposure of 10. Wide application range, cheap and easy to use at home. Those who pursue quality can consider importing products.

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1. There are many photographic filters, and you only need to buy them when you actually need them.

2. For friends who like landscape photography, CPL polarizer and GND gradient lens are essential.

3. Little friends who like slow door creation, ND reduction mirror is necessary.

4. If you often shoot during the day, it is recommended to buy a UV mirror.

There is no need to shoot other effects, and cheap protective glasses are a good choice.