Question 2: What effect does the exposure time of photography have on the photos? Need more knowledge of photography. In the normal shutter time (generally considered as 1 sec-1/2000s), the exposure time has little effect on the photo, but when the shutter speed is too high, such as110000s, or too low (such as: 30s), the exposure time is limited. This is: reciprocity rate failure, also known as reciprocity rate failure. The specific point is that when the shutter speed is slow, the exposure should be increased appropriately, and the shutter speed is too fast to reduce the exposure. Only in this way can the standard exposure be guaranteed. As for the influence, long exposure will increase the haze of the film, and short exposure will increase the contrast of the film.
Question 3: What effect will the exposure time of the camera have on the image? It should be said that no matter how long the exposure time is, as long as the exposure is normal, it will not have any impact on the image, and the image will never be white, short and dark after long exposure. So what's the impact of exposure time? 1. Shooting moving objects, such as water flow, the high-speed shutter can freeze and shoot splashing water, and the low-speed shutter can shoot the feeling that the water flow is as smooth as milk. It depends on the effect you want to achieve. 2. Exposure time determines whether you can shoot by hand. Hand-held shooting requires that the exposure time be shorter than the reciprocal of the focal length of the lens. For example, if the lens you use is 135 mm, then the exposure time should be less than1135 seconds. If the above conditions cannot be met, then a tripod is needed. 3. The exposure time determines the depth of field. When shooting scenery, in order to ensure the depth of field, a small aperture is usually used, which leads to a long exposure time. A tripod is usually needed at this time. 4. Exposure time is beneficial to reduce machine vibration. The reflector of a SLR camera will vibrate when it is put away. When exposed for a long time, the vibration time of the mirror only accounts for a small part, so the impact on imaging is minimal.
Question 4: What do you mean by long exposure time? That is to say, when shooting, use a slow shutter speed (ranging from a few seconds to several hours) and set the aperture and other values accordingly to achieve a very strange shooting effect.
I took this, and the shutter speed was 30s.
Not necessarily. It depends on the rated slowest shutter speed of the camera. I shot this for 30 seconds with D90, and then I have to use B if I want to slow down. I have to see for myself. The slowest paraxial ratio of Seagull 205 still in use is 1s, followed by B. If it is a fully automatic camera, it will be a bit troublesome because you can't set the shutter speed yourself, but if there is a long exposure shooting mode,
Question 5: What is the difference between exposure time and shutter time? Exposure is the compensation of light. Exposure time affects the brightness of photos. Shutter time is also shutter speed. Shutter speed is an important parameter of digital camera shutter. The shutter speed of different types of digital cameras is completely different. Therefore, when using a certain type of digital camera to shoot a scene, we must first know the shutter speed, because only when pressing the shutter, considering the start time of the shutter and grasping the release time of the shutter, can we shoot a vivid picture. Usually, the shutter of ordinary digital cameras is mostly within11000 seconds, which can basically cope with most daily shooting. Shutter should not only look at "fast" but also "slow", that is, the delay of shutter. For example, in some digital cameras, the longest shutter is 16 second, which is enough for shooting at night. However, if the shutter is too long, it will increase the "noise" of digital photos, that is, miscellaneous stripes will appear in the photos. In addition, mainstream digital cameras must have aperture priority mode and shutter priority mode in addition to automatic shooting mode. Aperture priority mode is that the user decides the size of the aperture, and then the camera calculates how much light enters according to the ambient light and exposure settings. This mode is more suitable for shooting still objects. Shutter priority mode is that the user decides the shutter speed, and then the digital camera calculates the appropriate aperture size according to the environment. Therefore, shutter priority mode is more suitable for shooting moving objects, especially digital cameras are very sensitive to vibration, and even slightly shaking the camera during exposure will produce blurred photos, which is more obvious when using practical long focal length. When choosing a digital camera, it is best to choose a model with these modes to ensure the shooting effect. As for the common B shutter function of SLR cameras, although you can freely decide the length of exposure time and have high shooting flexibility, most consumer digital cameras can't support it at present, and can provide the default values of slower speed such as 2 seconds, 8 seconds, 16 seconds at most.
Question 6: What is the difference between a long exposure time and a short exposure time, which directly affects the exposure? And if the subject is moving, the exposure time directly affects the effect. For example, when shooting a waterfall, the shutter is fast, the power flow solidifies instantly, the shutter is slow, and the water flows like silk. When shooting fireworks, the shutter speed is fast and only a moment can be taken. When the shutter speed is slow, all the sparks of fireworks from explosion to blooming can be photographed. Shooting people, the shutter is slow, easy to paste off, and the shutter is fast, so it is very clear.
Question 7: How does the exposure time of photography affect the photos? Need more knowledge of photography. I suggest you buy an introductory book on photography and look at things that cost more than ten dollars. Simple and comprehensive.
Question 8: What's the difference between exposure time and shutter speed? The simplest statement is that shutter speed affects exposure.
Exposure is affected by shutter speed and aperture size. Generally speaking, the exposure time and shutter speed are the same, so there will be this question. But in the official statement, there is no such thing as exposure time. It should be said that it is the exposure amount rather than the exposure time.
If you must talk about exposure time, then put aside the influence of aperture. You can understand that under the same aperture, the exposure time is short when the shutter speed is fast and long when the shutter speed is slow. For example, when the aperture is F2.8, the shutter speed of one thousandth of a second is shorter than that of one hundredth of a second, resulting in shorter exposure time.
Let's talk about exposure first:
As you know, the camera actually uses the negative (film camera) or CCD (digital camera) to save the projection of light, so the amount of light saved on the negative or CCD will affect the brightness of the photo. Less light is dark, and more light is bright. And this amount of light can be said to be normal exposure, too much is overexposure, and too little is underexposure.
The camera controls exposure through shutter and aperture. To borrow someone else's metaphor, this camera is like a faucet, and the amount of water is equivalent to the exposure. You can control the amount of water by opening and closing the water pipe for a certain time, and the opening and closing of this faucet is equivalent to the speed of the camera shutter and the aperture is equivalent to the camera aperture. When you have the same caliber, the longer you drive, the greater the water volume; Under the same opening time, the larger the diameter of the water pipe, the greater the water cutting.
In a word (-_-! Just like writing a paper, exposure is determined by both shutter speed and aperture size. Therefore, only the exposure time is not appropriate, but the exposure amount.
Question 9: What is the exposure time? duration of exposure
time of exposure
The time required for the shutter to open in order to project light onto the photosensitive surface of photographic photosensitive material. It depends on the sensitivity of photographic photosensitive materials and the illumination on the photosensitive surface.
Camera exposure time refers to the time interval between the opening and closing of the shutter. During this period, the object will leave an image on the negative.
Exposure time depends on needs, there is no difference between good and bad, just say needs. For example, it takes a long exposure time (maybe several hours) to photograph the trajectory of the stars, so that the long-term trajectory of the stars will be imaged on the negative. If you want to take a clear picture of a high-speed car, it takes a short time (usually a few thousandths of a second).
If the exposure time is long, there will be more light, which is suitable for poor light. Short exposure time is suitable for good light.