Principle of portrait photography

The principle of portrait photography is known to all friends who play photography. In traditional photography, there are many techniques for portrait photography, but the best one is focusing on the eyes. If you don't focus on your eyes, the photos will be soft and lifeless. Then let's talk about the principle of portrait photography.

The principle of portrait photography 1 The principle of portrait photography is to focus on the eyes.

It is very important to focus your eyes accurately when shooting portraits. If the eyes are out of focus, the whole photo will be soft and lose focus. No matter what pose the photographer poses, no matter what angle he shoots from, he should focus his eyes accurately. Especially when shooting with a large aperture, the depth of field becomes smaller, and a slight shift in the focus position will cause the eyes to defocus, so photographers should pay attention.

Eye focus

Eye defocus

Eyes get bigger.

Eyes get bigger.

Shooting portraits in any posture and at any angle is basically aimed at focusing the eyes.

When shooting with a small digital camera, as long as you can focus on a certain position of the face, you don't have to pay too much attention to the focus position. However, when using a high-pixel digital SLR camera, the out-of-focus phenomenon will be particularly obvious when zooming in because of the high resolution of the picture. In addition, because the image sensor of digital SLR camera is very large, it is easy to blur. When shooting with a 35mm full-frame camera, the blur is greater, so the requirements for focusing are stricter, and even attention should be paid to which part of the eye should be focused.

Preventing jitter is a taboo in portrait photography.

Precise focusing

The details are also very sharp. Accurately focusing on the eyes, even counting the number of eyelashes when the image is enlarged and displayed, is a pleasing photo.

Out of focus

The photo lacks sharpness and should be focused on the eyes, but the focus has shifted. Probably when the shutter button was about to be pressed, the photographer or the photographer himself moved.

Subject jitter

Although the photographer's headdress looks very focused, his face looks like a double exposure. This is because the shutter speed is too low to freeze the movements of the characters.

Many photos that are considered out of focus are actually faults caused by jitter.

If you carefully observe those photos that are considered out of focus, you will find that many of them are not sharp enough because of jitter. Out-of-focus and jitter are basically irrelevant, but both of them will affect the clarity of photos. Pay attention to portrait photography in particular. In addition, we should also pay attention to the subject jitter that may occur at the same time as hand jitter. As a reference of shutter speed without hand jitter, it is generally considered that 1/ focal length = safe shutter speed, but this statement does not take into account the influence of subject jitter. In portrait photography, it is necessary to consider that the subject is also moving, and then determine the appropriate shutter speed.

Principle of portrait photography 2 telephoto shooting shows the unique charm of portrait photography

First of all, the advantages of taking portraits with long focal length.

Today, I would like to introduce the advantages of taking portraits with medium telephoto. The choice of focal length directly affects the proportion of the subject in the picture, thus determining the visual effect of the photo. The reason is that it is easy to use, and the zoom lens can enlarge or reduce the scene in situ. This is of course a simple composition, but it is by no means the best way to shoot a portrait.

The advantages of using the medium telephoto lens are less deformation, normal perspective and simple operation. Because of its small shooting angle and deep scene, it has obvious compression effect on the scene, which can blur the messy scene, make the characters more prominent and the picture more stable.

Second, the telephoto experience

The telephoto lens can narrow the distance between people and the scene, strongly compress the space, make the picture quite concise, compact and full, blur the foreground and background, highlight the main body, and obtain the aesthetic feeling of overlapping scenes on the basis of obviously weakening the perspective effect.

Advantages of 1 and 85 lenses

As we all know, the 85mm lens is a fixed-focus portrait lens. Large aperture, good luminous flux, soft oily image quality. Very suitable for shooting busts, used in specific environments. When shooting close-up pictures, 85mm lens has the characteristics of no deformation compared with standard lens or wide-angle lens, which is very suitable for close-up emotional description. Compared with telephoto lens, 85 is closer to the perspective of natural human eyes and will not compress the environment into a background plate.

Comparison of 2.85 mm and 50 mm, 35 mm and 35 mm

85 has the characteristics of large aperture to highlight the main body and the portrait is not deformed. Compared with 50 and 35, its background blur is more obvious, and as a portrait head, it optimizes the skin color of the characters to some extent, especially when the weather is bad, and it performs better than the lens of 50 or 35. But the performance of the environment is not as rich as 50 or 30.

Third, telephoto framing skills

The framing of telephoto still follows several composition rules, such as three-point composition, diagonal composition and tic-tac-toe composition. In addition, the unique compression of telephoto makes it easier to capture the use of foreground. For shooting in cities, telephoto has its advantages in capturing depth, such as tunnels, passages, docks, street lamps, etc., which are especially suitable for telephoto. In the wild, telephoto is also the best choice to bring distant scenery closer to the model.

The blur of telephoto makes the characters and background well separated and highlights the subject more.

Three-dimensional composition is used when shooting, and the telephoto ensures the deformation of characters and scenery.

The telephoto ensures the depth of field and adds beauty to the work.

Fourth, how to fill the light for the model in telephoto

The supplementary light of telephoto should pay attention to the light ratio with the environment. For example, when shooting a wedding dress in Shan Ye, the wedding dress is prone to overexposure, so the fill light should be as soft and unobtrusive as possible, and the subject and background should not be separated because of the infiltration of artificial light. When necessary, you can use the hot shoe flash to supplement the light with a slight output value for the model's face.

Fill the bust with lights. Lightly fill the light with a silver reflector.

People in the big scene fill the light, and models bow their heads to fill the light with white clothes they wear.

Five, the distance from the model and how to guide the model

When shooting with telephoto, it is often far away from the model, which requires full communication before the model is in place, and fine-tuning after the photographer and the model are in place can only rely on loud voice. From this, once again, preparation in advance is the most important.