Aperture setting skills that must be learned

Setting the aperture size can be said to be a very important part of basic photography skills. Before pressing the shutter, you must first observe the light conditions and shooting environment, and set the aperture reasonably according to the situation, in order to shoot a clear picture. But also can effectively control the depth of field, which can show the photographer's shooting intention. I have sorted out the relevant aperture setting skills for you and shared them with you!

First understand what a small aperture is and what a large aperture is.

The aperture is like a window. At the same time (that is, the time when the shutter is open), the bigger the window, the more light it can absorb, so that the photo will become brighter, and the reason is easy to understand.

On a camera, a large aperture means adjusting the aperture to a position with a smaller number, such as f/ 1.4, f/2.8, f/4, etc. The smaller the number, the larger the aperture; The larger the number, the smaller the aperture, that is, the smaller the window, and the less light can be inhaled. The number is just the opposite of the aperture. You must pay attention!

Aperture setting tip 1: large aperture blurs the background and highlights the subject.

The larger the aperture, the shallower the depth of field. By taking advantage of this, we can avoid the messy background around us from affecting the picture effect, let the focus of the photo focus on the subject, and emphasize the subject more. As shown in the figure below, the camera is set to f/7. 1, 1/500 seconds, ISO 400, and the focal length is 400 mm. Although only the medium aperture of f/7. 1 is used, the bird is far away from the background, with a focal length of 400 mm and a distance of about 8 meters, achieving an ideal background blur effect.

Aperture setting tip 2: Use a large aperture in low light environment and shoot with your hand, which can avoid blurring the picture.

Many times when we shoot again, the light source is not very strong. Or in indoor shooting, cloudy days, evening and other poor lighting environments, a common problem is photos? Paste? Yes This is because it takes a long exposure time (slow shutter speed) to get the ideal effect when shooting in low light environment. Once the shutter speed is lower than the hand-held safe speed, hand shaking may lead to blurred photos. Using a large aperture can improve the light input per unit time of the photosensitive assembly to a certain extent, thus improving the shutter speed and avoiding the blurring of photos.

Large aperture is not only used to improve shutter speed in low light environment, but also used to obtain faster shutter speed in sunny days. When shooting animals and birds, we should try our best to capture the wonderful gesture of the moment and show their natural nature. Even if the light is sufficient, we often use a large aperture, appropriately increase the sensitivity, get a shutter higher than 65,438+0/500 seconds, and solidify the wonderful moments in the way of continuous shooting.

As shown in the figure below, the camera set the aperture priority, f/2.8, 1/40s, ISO 800, and the focal length is 28mm. Night scene shooting after rain. It is necessary to make full use of the scene environment, stabilize the body and camera with the help of fixed objects such as stones, railings, trunks and walls, and gradually improve the sensitivity with a larger aperture to make the shutter reach a safe shutter speed. This photo uses an aperture of f/3.5, the sensitivity is improved to ISO 800, and the shutter speed reaches 1/40 seconds. The hand-held camera clearly captures the night scene after the rain.

Aperture setting tip 3: Use a small aperture at macro to avoid shallow depth of field.

Macro use: Macro lens can be used to shoot close-ups of insects, and another important factor affecting the depth of field is shooting distance. The closer to the subject, the shallower the depth of field and the more blurred the background. Therefore, if macro photography uses a large aperture, the depth of field will be too shallow. Small and medium apertures such as f/8, f/ 1 1 and f/ 13 are often used to ensure a clear range of the picture.