What is the tone of photography？What are its classifications?

What is the tone of photography？Tone: The level of black, gray, and white shown in the photo and its depth. Tone also refers to the tone of the entire picture. The term tone appeared in the era of black-and-white photos, and only involved light and shade, not color. The light and shade of the scene form the tone of the photo. Tone is the basic element and basic method of photographic modeling, which can make people understand the shape, volume and texture of the scene.

The influence of tones on visual effects: usually bright tones give people a feeling of expansion, lightness, and dark tones give people a feeling of contraction and heaviness. For example, if you place a white ball and a black ball of the same size in front of a gray background, people will find that the black ball is seen behind the white ball, and they think that the white ball is large and the black ball is small; and the same style, two chairs of the same material, the white chair looks It will feel light, and the black chair will look heavy.

In a painting, the upper part is whiter and the lower part is darker, which makes it look stable; if the upper part is darker and the lower part is whiter, you will feel top-heavy.

·         What are the classifications of photography tones?

·         In terms of photography tone, it can be divided into:

·         • High profile. The so-called high-profile is a shallow and clear tone. It is equivalent to the range of IV~X in the gray scale spectrum, from light dark gray to white-dominated tones, covering light dark gray, medium gray, deep light gray, light gray, and very light gray in the shadow tone spectrum. Gray, white. White is the most, followed by gray, and the least black. The contrast between light and dark is small, the details of the dark parts are relatively clear, the tonal levels are few, and the transition is gentle. It gives people a sense of liveliness, elegance, purity, grace, tranquility, and elegance. If you want to shoot high-profile movies, use soft light, preferably scattered light or smooth light. The light ratio is smaller and the background is bright. For color photos, the color saturation should be high and light. In pursuit of high profile, 0.5~2 levels of exposure compensation should generally be added.

·         • Midtones: Tones with moderate light and dark. It is equivalent to the range of II~VIII in the gray scale spectrum, covering the dark and dark gray, dark gray, light dark gray, medium gray, dark gray, light gray, and very light gray of the shadow tone spectrum. It is narrative and documentary, giving people a sense of truth, harmony, simplicity and health.

·         • Low key: deep and dark tones. It is equivalent to the range of 0~VI in the gray scale spectrum, mainly from black to deep tones, covering black, black gray, dark dark gray, dark gray, light dark gray, and medium gray in the shadow tone spectrum , Shades of gray. Black is the most, followed by gray, and white is extremely rare. The contrast between light and dark is large, the details of the highlights are relatively clear, the tonal levels are few, and the transition is blunt, giving people a sense of deep, solemn, solemn, mysterious, rough, and strong.

According to the degree of contrast of photographic tones, it can be divided into:

• Soft tones: Tones with small contrast. The picture changes from light dark gray to white, with many and natural transition levels, small gray level difference and smooth transition, and small contrast between light and dark. Scattered light is needed for softening.

• Hard tones: Hard tones with high contrast. The picture changes from black to dark light gray, with less transition levels and abrupt, large gray level difference and rapid transition, and large contrast between light and dark. Hard adjustment requires direct light.

• Special hard tones: The silhouette is a special hard tone, the subject is completely black without details, and has the effect of paper-cutting art. The silhouette belongs to backlight photography, the outline of the subject is clear, the picture is simple, and the shape is summarized and vivid.