When performing model photography, due to the lighting, almost always shadows are left on the characters. If the direct sunlight is too strong, the shadows formed will be very obvious. In order to keep the camera's shutter speed in an appropriate range, professional photographers basically only use a high light-intake aperture of at least F2.8. With such a shading ring, light is usually sufficient.

In addition, the shading ring can also achieve the second purpose, which is to make the depth of field very shallow, so that the focus of the photo can be focused on the person to be photographed, and the background will become blurred. . In a monocular camera, this effect can be directly observed through the camera's viewing window. At the same time, in order to make the captured photos brighter, it is also necessary to control the aperture of the lens within a large value range. In this way, when you press the shutter, the camera can take the desired photo with the pre-selected aperture value.

However, just the shading ring cannot make the background in every photo taken blur enough. This is because, as long as the focal length is close to infinity (this is indicated by "∞" on the camera), all objects in the photo that can be seen within infinity will be clearly displayed in the photo. Therefore, when shooting a model, the photographer needs to keep a long distance from the model. In addition, in order to achieve the effect of a large aperture, it is necessary to use a telephoto lens. Usually in model photography, it is necessary to use an ultra-long focal length of 300mm or more.

In portrait photography, it is also necessary to distinguish the subject from the background. However, in this case, a focal length of around 85mm is sufficient. This is because, compared with model photography, portrait photography only needs to shoot the head and upper body. Of course, it can also be achieved by walking closer to the model.

1. How to make the background blurry If you want to get a blurry background for the photo, you can do it through the following two methods. 1. When shooting in daylight, just shorten the exposure time. For example, shorten the exposure time from the original 1/60 second to 1/125 second, so that you can increase the shading circle by one level, for example, from 1:5.6 to 1:4.

2. If you want to use the flash to take a photo, you usually need to synchronize the shutter with the flash. However, in order to reduce the amount of light entering the image sensor, a neutral gray lens can also be used, which can block part of the light from entering the image sensor.

Close-up: When shooting portraits, a focal length of around 85mm can blur the background. F5.6 is suitable for people and travel photography

During travel, tourists often want to take pictures of landscapes, houses, or urban scenes. These shooting subjects will attract the attention of the audience because of the very different brightness in the picture, so the automatic exposure mode in the camera is difficult to take on the important task. In order to obtain the best aperture value, professional photographers usually choose a set of aperture ranges. They switch to manual mode first, and then set the aperture to a medium value. Then press the shutter several times, and then increase or decrease the aperture to repeat the shooting. If the photos taken in this way still cannot show all the light effects, you can only do post-production editing in Photoshop. You have to arrange the photos one by one, and then use the mask to modify the underexposed or overexposed parts. When shooting distant landscapes, you can no longer expect a blurred background, especially when shooting details in the landscape. In the news photos taken during the trip, the surrounding audience should also be included in the event. It is best not to have blurry places on the screen.

Taking a group photo with multiple people also requires depth of field. The portrait mode is out of place here, because the camera's automatic function will open a wide aperture. At a focal length of 50mm, the aperture of F5.6 to F8 can fully express the depth of field, so that everyone in the photo can be seen clearly. If you use a longer focal length, you should continue to reduce the aperture or be further away from the subject, so that the depth of field can be increased.