How to take good photos in photography and how to quickly grasp the role of light?

How to take good photos in photography and how to quickly grasp the role of light? Let me give you my opinion. In photography, the role of light is particularly important. Let's talk about the characteristics of light first. When light comes from the light source, it is the beginning of photography. In essence, photography is about controlling light. We can distinguish the morning glow, the hot sun at noon and the sunset at night. We also know where to install fluorescent lamps and incandescent lamps, and the influence of a lamp on the interior decoration style. However, the photographer's ability is not only aimed at specific lighting effects.

As photographers, we must know the brightness and color contrast of light. For photographers, brightness is the most important attribute of a light source. The higher the brightness of the light source, the more helpful it is for shooting. If the light is not bright enough, we can't even take pictures. If the brightness of the light is very suitable for shooting, then we may get better photo effects.

We can use any color of light we like. Bright light will add artistic effect to the photographer's work. However, most photos were taken under white light. Even the so-called "white light" will have a series of different colors, which is difficult for our eyes to distinguish. The light source is roughly composed of the three primary colors of light, namely, red light, blue light and green light, which can be considered as a uniform mixture of white light.

The digital camera we use now will automatically adjust this mixed light, but the ratio is often not very good. So photographers must pay attention to the differences between various white light sources. In order to distinguish the color change of white light, the photographer borrowed the unit of color temperature in physics to measure colored light. Color temperature is based on the physical phenomenon that when we heat a material to a certain temperature in vacuum, it will emit light, and the color of the emitted light depends on the heating degree of the material. Kelvin temperature is used as an index to measure color temperature, and the unit of measurement is Kelvin, abbreviated as K.

The digital camera we are using now provides greater flexibility by adjusting the values of different colors in data processing, so that we can take photos with balanced colors.

The third importance of contrasting photographic light is contrast. If the light source illuminates the subject at almost the same angle, it will produce higher contrast, and if the light source illuminates the subject at many different angles, it will produce lower contrast.

Visible, sunny sunshine is the most common high contrast light source. The easiest way to identify a high-contrast light source is to see if there is a shadow, and the boundary of the shadow is very clear and obvious. On cloudy days, sunlight scatters through the clouds, causing the light passing through the clouds to illuminate objects from different angles, so the sunlight on cloudy days becomes a low-contrast light source. The way to identify low-contrast light sources is to look, and shadows are no longer clearly visible. The contrast of light is only one of the factors that affect the contrast of photos, and the composition and exposure of the subject are also the factors that affect the contrast of photos.

The use of light in photography goes far beyond light itself. The use of light discusses the relationship between the subject and the viewer. Therefore, if we want to talk more about the use of light, we must discuss the characteristics of the subject.