How to adjust the sensitivity of SLR camera

Question 1: How to set the camera's sensitivity when taking pictures ―― a numerical value to measure how much light is needed for accurate exposure of film. The sensitivity of film is generally expressed by ISO value. The larger this value is, the more sensitive the film is to light. Films with different sensitivities are suitable for shooting in different occasions. For example, ISO 100 film is most suitable for shooting in sunny outdoor, while ISO400 film can be shot indoors or in poor light environment such as early morning and dusk. Although digital cameras don't use film, the CCD used to sense light signals has corresponding requirements for exposure, which is the same as the sensitivity of film. So CCD is equivalent to film and has a certain sensitivity. For the convenience of digital camera users, digital camera manufacturers generally convert the sensitivity of CCD to light into the sensitivity of traditional film, so digital cameras have the concept of "equivalent sensitivity". According to the traditional classification of film sensitivity, the "sensitivity" of digital cameras is currently distributed in the middle and high speed range, with the lowest being ISO50 and the highest being ISO6400, most of which are around ISO 100. Some digital cameras have a single sensitivity, and their CCD sensitivity tolerance is very small, so the requirements for shooting conditions are harsh. In the case of too strong or too weak light, the use effect will be very poor. In addition, the equivalent sensitivity of some digital cameras can be selected within a certain range, but there will be some differences between setting the sensitivity high and setting it low, so if you don't know much about the equivalent sensitivity of digital cameras, you'd better put it in the "best sensitivity" file. When choosing a digital camera, the sensitivity of CCD is also a consideration. If the equivalent sensitivity of a digital camera is low and the ambient light is slightly dim, the camera will have to use a flash, which will darken the background. Higher equivalent sensitivity will give you more flexibility. For example, you can achieve a natural and balanced shooting effect without a flash indoors, and high sensitivity can achieve better results when shooting high-speed sports. Theoretically, the higher the sensitivity of a digital camera, the better the shooting effect will be. However, due to the limited manufacturing process of CCD, trying to improve the equivalent sensitivity will make the image rough, lose some details and affect the image quality, which is actually consistent with the problems encountered by traditional high-sensitivity photosensitive materials.

Question 2: How does Nikon adjust the sensitivity? How does Nikon SLR adjust the left mode dial of the sensitivity camera? Set the A gear to aperture priority mode, and adjust the aperture with the wheel in front of the shutter button; The mode dial on the left side of the camera is set to the S position as the shutter priority mode, and the roller in front of the shutter button adjusts the shutter; For manual mode, the mode dial on the left side of the camera is set to M position. Press the wheel in front of the shutter button to adjust the shutter, and press the button with the logo behind the shutter button to adjust the aperture.

Fn key+command dial to set sensitivity.

Question 3: How to set the aperture of the camera? Shutter and sensitivity have no fixed values. The environment is different, the light is different and the parameters used are different. Different parameters will have different effects in the same environment. Aperture: mainly controls the depth of field, that is, the blurred effect of the background you see. The larger the value, the smaller the aperture. Shutter, exposure time control, such as capturing fear, requires a relatively high shutter speed and a relatively slow shutter. Sensitivity controls the sensitivity of the camera. The higher the value, the higher the sensitivity and the more noise!

Question 4: How to adjust the sensitivity ISO, shutter speed, aperture and exposure compensation of SLR cameras? What is the principle of adjustment? Aperture: The smaller the aperture, the larger the aperture, the more light entering, the brighter the picture and the shallower the depth of field.

The larger the aperture value, the smaller the aperture, the less light entering, the darker the picture and the deeper the depth of field.

Shutter: The faster the shutter speed, the shorter the lighting time, and the darker the picture, the more you can capture the moment.

The slower the shutter speed, the longer the light passes and the brighter the picture, the more expressive the process will be.

ISO:

The higher the ISO sensitivity, the more sensitive the photosensitive element is to light, the brighter the photo, and the more noise.

The lower the ISO sensitivity, the less sensitive the photosensitive element is to light, and the darker the photo, the less noise.

Exposure compensation

Increasing exposure compensation is actually slowing down the shutter speed or opening the aperture, and the picture becomes brighter.

Reducing the exposure compensation actually speeds up the shutter speed or narrows the aperture, and the picture becomes gloomy.

The subject is bright, so the exposure compensation should be improved; The darker the subject, the lower the exposure compensation.

If the ambient light is too bright, reduce the exposure compensation; Insufficient ambient light, exposure compensation should be improved.

The smaller the focal length, the wider the shooting range.

The greater the focal length, the farther the object is photographed.

Question 5: How to adjust the ISO sensitivity of SLR cameras? Some SLR cameras have ISO buttons, which can be adjusted by pressing the dial. Some camera buttons are relatively simple, so you need to find the ISO adjustment interface in the menu.

ISO is the photosensitive speed. If ISO is improved, a brighter picture will be obtained with the shutter speed and aperture F unchanged. On the other hand, if the ISO is lowered, you will get a darker picture with the shutter speed and aperture f unchanged.

In the case of manual gear shifting, after adjusting the ISO value, please refer to the camera metering parameters and adjust the shutter speed and aperture according to your own intention.

The following is an example of an ISO application scenario: the light is not very good. In the case of ISO 100, you shoot with a focal length of 50mm, the shutter speed is110s, and the aperture has reached the maximum. You don't have a tripod, and the shaking of your hands always makes the picture unclear. You can try to set ISO to 800, and try to use the maximum aperture and shutter speed 1/80s. You find that the brightness of the picture is the same, but the picture is clear because the shutter speed is faster.

Question 6: How to adjust the SLR iso? Different brands adjust in different ways, but they are roughly the same. Take Canon 550D as an example. 1. Turn on the camera and press the ISO shortcut key (near the shutter button) when shooting;

2, dial adjustment (display screen or viewfinder display);

3. Press the SET key or half press the shutter to confirm and return to the shooting state.

Question 7: How to set the shutter, aperture and sensitivity when shooting still life? The higher the brightness of ISO sensitivity of SLR cameras, the greater the noise of photos. Conversely, the lower the brightness, the smaller the noise and the darker the picture. Shutters with shutter speed can present different landscape colors. If the shutter is too fast, the photo will be blurred, and if the sensitivity is reduced, the photo will be clear. The larger the aperture, the smaller the depth of field, and the smaller the aperture, the larger the range of depth of field. By adjusting the sensitivity, shutter and aperture, you can take clearer and more artistic photos. So the article I want to recommend today is the design skills of ISO sensitivity, shutter and aperture of SLR cameras.

Aperture setting skills: the aperture value of the lens is a proportional value between the diameter of the lens incident light and the focal length. 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.

Aperture setting skills: when taking photos of people, we mainly pay attention to the attitude of the people. The foreground is deep and the background is simple and vague. Then we must cooperate with the reflector to show people's light as silhouette light, and people's face and hair as contour light, which will show people's demeanor more. 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.

Aperture setting skills: taking landscape photos, presenting large-scale landscape photos with large depth of field, and taking white clouds in the sky to present the landscape, 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.

ISO sensitivity setting skills: ISO sensitivity can prevent hand shake and subject shake, usually taking pictures in dark places, and can also present the sharpest imaging. Sensitivity is shot in a scene with insufficient indoor light, and hand shaking is easy to occur when the shutter slows down. By improving the sensitivity and cooperating with the tripod, we can realize the method of avoiding blurred photos.

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.

ISO sensitivity setting skills: Take still life photos when traveling, and set ISO sensitivity to automatic mode. Choose a professional digital SLR camera, shoot with 18-55mm lens, 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.

Shutter setting skills: The shutter mainly affects the clarity of the picture, and the movement is controlled by controlling the exposure. The shutter speed required to break the glass is 1/8000 seconds, and the shutter speed required to shoot skiing and skating occasions is 1/50 seconds, and it is necessary to shoot sprints and long jumps ... >>

Question 8: How to adjust the sensitivity of Nikon d7 100 camera to 1? Press and hold the button labeled ISO on the back of the camera and rotate the main command wheel at the same time until the required ISO value appears on the viewfinder or display screen.

2. You can refer to the following figure for operation.

Question 9: How to set the sensitivity of Canon 600D? The sensitivity of Canon cameras is the same. There is an ISO button next to the shutter button of the camera, which is on the side of the scroll. Just press that button and scroll to set the sensitivity value. When setting the value, I suggest that you don't set the sensitivity too high, because setting the sensitivity too high may lead to too much noise in the photos taken and affect the quality of the photos, so I suggest that you don't set the sensitivity to more than 5000. It should also be noted that the sensitivity cannot be adjusted in automatic mode, but only in aperture priority, shutter priority and full manual mode.

Sensitivity is an index similar to film sensitivity. In fact, ISO of digital cameras is realized by adjusting the sensitivity of photosensitive devices or merging photosensitive points, that is, by improving the sensitivity of photosensitive devices or merging several adjacent photosensitive points. Photosensitive devices have a reaction ability, which is not fixed. There are two ways to improve the ISO of digital cameras:

1, forcibly improving the brightness and contrast of each pixel;

2. Using multiple pixels * * * can complete the task that only one pixel is needed.