How to set the aperture and shutter of SLR camera?

Aperture and shutter setting skills of SLR cameras;

1. Aperture setting skill: The aperture value of the lens is a proportional value between the diameter and focal length of the incident light of the lens. The larger the aperture value presented by a digital camera, the smaller the aperture and the greater the depth of field. The larger the focal length, the smaller the aperture and the wider the depth of field. Similarly, the farther the distance, the greater the depth of field. The farther the camera is from the subject, the aperture will be F22, F 19. In this way, the greater the depth of field, the larger the landscape picture can be taken.

Second, the aperture setting skills: taking photos of people mainly pays attention to the attitude of people, with deep foreground and simple and fuzzy background, so you must cooperate with the reflector to show that the light of people is contour light, and the face and hair of people show contour light, which will better show the attitude of people. Usually, the depth of field of landscape photos is very wide. In order to highlight the theme, portrait photos are shot with a small range of depth of field and a large aperture. The smaller the value, the aperture of F4.0 is used.

3. Aperture setting skills: taking landscape photos and large-scale landscape photos with large depth of field, and taking photos with white clouds in the sky to present the scenery, not only to ensure a clear background, but also to show the layering of the sky, thus having the function that the exposure mode in the digital camera is aperture priority mode, and its main purpose is to control the depth of field presented when taking photos. For digital cameras, the best aperture of the photographic lens is F5.6 and F 1.8 to take photos. Turn on the digital camera and switch the mode to the aperture priority automatic exposure mode AV. You can set the aperture value at will, but if the aperture setting is too large, the contrast and sharpness of the picture will be reduced, so it is better to set F5.6 and F8, while setting the aperture value from F 1 1 will obviously affect the picture. Aperture mainly changes with aperture value, lens focal length and shooting distance. When taking close-ups, you can set the aperture to F4.0 and F5.6, which is better, the depth of field will be smaller, and the photos will not be sharp.

Fourth, ISO sensitivity setting skills: ISO sensitivity can prevent hand jitter and subject jitter, usually taking pictures in dark places, and can also present the sharpest imaging. Sensitivity is shot in the scene with insufficient indoor light, and hand jitter is easy to occur when the shutter slows down. By improving the sensitivity and cooperating with the tripod, the photo blur can be avoided.

Five, ISO sensitivity setting skills: When the sun comes out during the day and the weather is clear, set the sensitivity to automatic, and the sensitivity is100,200. While increasing the shutter speed at night, the sensitivity can be reduced to ISO800, and the color of night photos will be more artistic. In the exposure of Fn 1: In a SLR camera, you can turn on the light mode and start the ON key. At this time, you can adjust the brightness and clarity of the picture with ultra-high sensitivity. When the sensitivity is too high, the rough spots in the photo will increase more.

Sixth, ISO sensitivity setting skills: It is very good to set ISO sensitivity to automatic mode by taking still life photos while traveling. Choose a professional digital SLR camera, shoot with a lens of 18-55mm, set it to P mode, start the program automatic exposure mode, set the white balance to automatic, and control the sensitivity to ISO320, which will make the photos more attractive. Taking beautiful photos in night mode, setting the aperture f5.6 can set the ISO sensitivity to 3200 without using a flash to present more beautiful photos of people at night.

Seven, shutter setting skills: shutter mainly affects the clarity of the picture, by controlling the exposure, control the movement. The shutter speed required for breaking glass is 1/8000 seconds, for shooting skiing and skating, 1/50 seconds, and for shooting sprint and long jump, 1/250 seconds. The speed of holding the shutter should be controlled according to the focal length. Generally, the shutter speed of a 55mm focal length lens can be 1/50 seconds. It is generally appropriate to set the shutter speed below 1/30 seconds when shooting racing drivers by following method. The viewfinder of the camera should be stationary relative to the moving object. Press the shutter in the moving state, and be sure to keep a better distance. The shutter should be perpendicular to the moving direction of the moving object, and the background with lines should also be selected when choosing the background. Generally, diagonal composition and golden section are used to present photos.

Eight, shutter setting skills: shoot the motion of the subject through the shutter speed. Generally speaking, you can open the TV mode file of SLR digital camera to show the fluency and jumping feeling of photos. The water waves presented by solidified objects should be selected with a high-speed shutter. The lower the shutter speed, the more fluid the photo will be, and the higher the shutter speed, the photo will feel solidified. When the shutter speed is very low, the camera will shake seriously, so when shooting with a tripod, the shutter speed is set too high, and the photo will become dark when it is underexposed, which can be achieved by improving the sensitivity. The closer to the subject, the larger the relative picture of the waterfall, and the more obvious the sense of movement of the subject. Choose a 55mm lens and set the shutter speed to 1/8 seconds, the shooting range of the subject will be expanded, and the fluidity of the picture will not be too strong, but setting the shutter speed to 1/2 seconds will make the picture more fluid.

Summary: When you master the setting skills of shutter, sensitivity and aperture, you can turn on the SLR digital camera and set it to manual exposure mode to practice taking pictures. At this time, turn the camera mode dial to M, determine the shutter speed by turning the main dial, and adjust the aperture value, sensitivity value and shutter speed by pressing and holding the AV exposure compensation button. When the aperture is opened, the shutter is lowered and the ISO sensitivity is improved, the picture will be darker. At this time, the exposure will be increased, and the picture will become more vivid. Narrowing the aperture, increasing the shutter and reducing the sensitivity can get clearer photos. You can get the most stable picture in a high-brightness scene. By setting the aperture to F4.0, white balance to automatic, sensitivity to 100, shutter speed to 1/250 seconds, changing the angle and zooming, it is more natural to shoot portraits.