What is the safety shutter speed?

Question 1: What is the safe shutter speed? My digital camera sometimes takes a wrong shot at the telephoto end, and netizens say it should be taken at a safe shutter speed. What is the safety shutter speed? Safe shutter speed refers to the relatively safe shutter speed for hand-held shooting. On the 13 phase machine, the shutter speed is higher than the reciprocal of the lens focal length. For example, when shooting with a 20Omm lens, the minimum safe shutter speed is 1/200 seconds. Below this speed, there is a great risk of wrong shooting. Before there is an anti-shake system, photographers will take pictures according to this rule. If you are using a digital camera, you should pay special attention to the problem of eight PS magnification. For example, the focal length conversion ratio of Canon non-Quan Huafu SLR camera is 1 .6, and the safe shutter speed is 1/(20ox gate 6)= several pairs for 20 seconds when shooting with a 2-field mm focal length. Therefore, we should try our best to take pictures within the safe shutter speed, but sometimes we can't reach the safe shutter speed under the condition of long focal length or weak light. It is best to cooperate with a tripod or an anti-shake system to complete the shooting.

Question 2: What is the speed of the safety shutter? The calculation method of general safety shutter is the reciprocal of focal length, that is, 1/ focal length.

For example, if you use a 200mm lens, the safety shutter is 1/200. But in fact, we generally say that as long as we can guarantee 1/250 seconds, we are not afraid of using any lens, and the basic safety shutter is 1/50. But some iron hands are not necessarily. For example, I use D3000 at least 1/8.

Question 3: The shutter speed of the safety shutter is measured in seconds. So, what kind of shutter speed can be called safe shutter speed? In fact, the safety shutter is not static, it is closely related to the focal length of the lens used. The safe shutter speed is the reciprocal of the focal length, that is, the safe shutter speed = 1/ focal length. For example, Canon EOS 30D uses a 50mm lens, so 1/80s is the safety shutter (because the focal length conversion coefficient of EOS 30D is 1.6, the actual equivalent focal length of 50mm lens is 80mm). If the shutter speed of1125s or 1/250s is selected, the shooting stability can be guaranteed. On the other hand, if the shutter speed of 1/30s is selected, there may be "false shooting".

Question 4: What is the safe shutter speed when shooting with a hand-held camera? Generally speaking, the concept of "safety shutter" is based on people's experience. If the shutter speed is above the safety shutter, the photos taken by hand can be basically clear. If the shutter speed is lower than the safety shutter speed, it is likely that the camera instability will cause jitter and affect the picture clarity.

The safety shutter is generally the reciprocal of the focal length of the lens used in shooting. The longer the focal length, the higher the requirement for the safety shutter, which also explains why the telephoto lens is more prone to blur when shooting by hand. Generally speaking, when shooting with a wide-angle lens, because of the short focal length, you can shoot clearly even if the shutter speed is a little slow. Therefore, when manufacturers design lenses, some wide-angle lenses do not need anti-shake, while telephoto lenses use anti-shake technology more.

However, I personally suggest that in order to ensure the clarity of hand-held shooting, the shutter speed can be kept at about twice that of the safe shutter, so that even if the personal hand-held stability is different, the clarity of shooting can be basically guaranteed.

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As for the last question in your question, the accuracy of exposure is not only related to shutter speed, but also related to aperture and sensitivity. These three parameters combine to determine the correctness of exposure.

Question 5: What does the safe shutter speed mean? Not 100/ 1, but more than 200/ 1, such as 400/ 1. The larger the number of shutters, the slower the shutter speed! ! !

Question 6: When shooting with a hand-held camera, the shutter speed is greater than 1, and the safety shutter generally refers to 1/ focal length. Below this shutter speed, you can generally ensure that the photos are relatively clear.

2. Pan/tilt is generally a 50MM fixed-focus lens, and the safety shutter on the SLR camera of APS needs to be multiplied by the coefficient of 1.5 (Nikon) or 1.6, that is, 1/75 seconds and 1/80 seconds are its safety shutters. The whole picture is 1/50 seconds.

3. Coupled with the vibration when the camera presses the shutter and the photographer's own jitter, many photographers think that the safe shutter is: 1/ (focal length *2).

4. Handholding can only ensure relative clarity, but such clarity has been able to meet the general requirements. To get high-quality photos, it is recommended to use a tripod and use the camera's * * * function or wired release to shoot.

Question 7: What is a safety shutter? How to calculate the safety shutter is actually the reciprocal of the focal length, but for APS-C format cameras, the focal length value should be multiplied by 1.6! Remember this.

1/60 is safer to shoot by hand,1125 is suitable for shooting small moving objects, such as walking people, 1/250 is suitable for moderate moving objects, such as running people, 1/500 can capture cars! I probably remember that it is enough to shoot on weekdays, and I am afraid of filming and I am afraid of being on the shelves! It doesn't matter if the shutter is slow.

Question 8: What is the safe shutter speed of18-140 lens? The calculation method of general safety shutter is the reciprocal of focal length, that is, 1/ focal length.

For example, if you use a 200mm lens, the safety shutter is 1/200. But in fact, we generally say that as long as we can guarantee 1/250 seconds, we are not afraid of using any lens, and the basic safety shutter is 1/50. But some iron hands are not necessarily. For example, I use D3000 at least 1/8.

The faster the shutter speed, the faster the moving thing can solidify. Generally speaking, if there is a moving subject in the picture, the sooner the shutter is, the better. But the high-speed shutter also shortens the exposure time and reduces the brightness of the picture, so it needs a well-lit environment or a large aperture lens to support it.

Question 9: To what extent should the shutter speed not make people's actions empty? With a hand-held camera, the safety shutter speed should at least reach the reciprocal of the focal length. For example, if you use a lens with a focal length of 100MM, your shutter speed should not be lower than1100 seconds at the slowest. If it is lower than this speed, it is easy to take a false shot. The longer the focal length, the faster the speed should be.

Question 10: What is a safety shutter in a camera? 1, the concept of "safe shutter" refers to the lowest (slow) shutter speed used to ensure the clarity of photos taken and avoid the camera's instability or jitter leading to blurred photos. Short for "safety shutter". Its function is to ensure that the photos taken are clear. When shooting under certain conditions, if the shutter speed set by the camera is lower than the "safe shutter speed", the photo will be blurred easily.

2. The safety shutter speed is not a fixed value, and it will change with different shooting equipment, shooting conditions and shooting objects. Generally speaking, the safe shutter speed is related to whether a tripod is used, the focal length of the lens, the moving speed of the subject and the distance and angle from the camera. These shooting factors determine what kind of speed should be used as the safe shutter speed to ensure the clear photos.

3. The safety shutter is generally an empirical value, and there is no absolute right or wrong. Moreover, different experiences, different shooting situations and different shooting requirements often have some differences. For example: a, the safety shutter for ordinary photographers holding a 50mm focal length lens to shoot a fixed subject without turning on anti-shake is 1/30 seconds (meaning it can't be lower than this speed, but it can be higher than this speed), while experienced and skilled people can use110 seconds as the safety shutter. B, the general safety shutter of telephoto lens = 1/ lens focal length, that is, the reciprocal of lens focal length is adopted, but the safety shutter can be reduced by 3-4 levels after anti-shake is turned on. C. the security shutter for shooting moving objects is more complicated. For example, the safety shutter of a fast-moving car is different from that of a slow-moving car, and the safety shutter of two cars traveling at the same speed but in different directions relative to the camera is also different.

4. The safety shutter suitable for this situation should be adjusted according to different situations. In addition to choosing other people's experience values, more needs to be determined by their own experiments. The so-called "safety shutter" is just a concept.