How to adjust the shutter speed of photography

Lead: What is the shutter speed? I have written elsewhere, and the most fundamental definition is that the shutter speed is the amount of shutter opening time. In film photography, shutter speed is the length of time the film receives light, while in digital photography, it is also an image sensor? Do you see it? Length of time on site. I break down the definition of shutter speed into several small concepts, which will help digital photographers understand the definition of shutter speed and know how to adjust the shutter speed of photography.

Methods/steps

The unit of shutter speed is seconds. Or in most cases, a fraction of a second. The fraction representing the shutter speed is generally expressed by 1/xxx, and the higher the denominator, the faster the shutter speed. For example,11000 is much faster than 1/30.

In most cases, you may need to use a shutter speed of 1/60 and above. Because there is often a slight jitter when shooting, if you use a slow shutter, your photo will be blurred.

If you take pictures with a slow shutter (below 1/60), you'd better use a tripod, so that when you take pictures with a slow shutter, the pictures will not be blurred.

The shutter speed of a digital camera increases or decreases. You usually have the following shutter speed options: 1/500, 1/250,1125, 1/60, 1/30,1/. This kind? By? The setting is convenient for photographers to remember, and the aperture setting size is doubled. Therefore, increasing the shutter speed by one step and reducing the aperture size by one step will bring you similar exposure settings.

Some cameras will also give you a slow shutter speed. But as we said, the shutter speed is still in seconds. For example, (1 sec, 10 sec, 30 sec). When you want to capture a lot of motion in a very dark scene, or you want to shoot some special effects. This shutter speed is very effective. Of course, there's a slower shutter. That's it? b？ In mode, when you set the B shutter with a digital camera, when you hold down the shutter, the shutter will always open.

Freeze the motion in the image and choose a faster shutter speed. If you blur the motion, you must choose a slower shutter speed. The actual speed you should choose will depend on the speed of the subject you are shooting.

Exercise is not always a bad thing. A friend of mine told me that he always used a faster shutter speed, and he couldn't understand why others blurred his photos with a slower shutter speed. However, I told him that sometimes sports photos are better. For example, taking a waterfall to show the speed of water flow; When you shoot a racing car, you want to show us its speed. When you shoot the starry sky, you want to show that the stars move with the rotation of the earth. In all the above cases, choosing a slow shutter speed will be your only choice. However, in all these cases, you need to use a tripod, otherwise you will shake the camera itself in the photo, which will destroy your imaging quality.

How to adjust the shutter speed of photography depends on the relationship between focal length and shutter speed. Another thing to consider is that you should learn to choose the shutter speed according to the focal length of the lens. When the camera uses a long focal length lens, it is necessary to use a faster shutter speed to keep the body stable. This stability rule is generally like this: the denominator of shutter speed is greater than the focal length of the lens. For example, if you have a 50 mm lens, you have correctly selected the shutter speed of 1/60. If you have a 200mm lens, you may have to use a shutter speed of 1/250.

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Matters needing attention

Remember, when considering the shutter speed, we must consider the change of ISO and aperture. If you change the shutter speed, you need to change the aperture or ISO to make up for the change in shutter speed.

For example, if you increase the shutter speed from1125 to 1/250, the light entering the camera is effectively reduced by half. To make up for this, you may need to increase the aperture from F 16 to F 1 1. Another way is to choose a faster ISO, from ISO 100 to ISO 400.