Is the anti-shake function of digital camera important?

Simply put, the anti-shake function of digital camera is to reduce the phenomenon of blurred photos caused by hand shaking.

When it comes to "anti-shake", we must know how to "shake".

People who come into contact with digital cameras for the first time often have such confusion. The photos taken are not clear enough, and there will always be ghosting or blurring. The reason is that the shutter speed is too low, except for occasional out-of-focus (that is, the camera can't focus normally). Generally speaking, under the hand-held condition, the shutter speed for taking clear photos should reach the reciprocal of the focal length or even higher. For a simple example, if the lens equivalent focal length of a camera is 35mm- 105mm (generally three times that of an optical zoom lens), the shutter speed at the wide-angle end should be kept at least 1/40 seconds to ensure a clearer picture, while the shutter speed at the telephoto end should reach1125 seconds. And if the lighting conditions at the scene can't meet this requirement, it's not so simple to take clear photos. As you can imagine, for those products with optical zoom of 10 times, anti-shake technology is even more essential, because the telephoto end of these products often reaches more than 370MM, so the shutter speed must be above 1/400 seconds to be qualified, otherwise it can only be worse than sighing. So "anti-shake" should be more useful for telephoto cameras.

Therefore, when shooting, the shutter speed can not reach the "safe" speed, and the photos are prone to ghosting or blurring, which is called "shaking" or "pasting". In fact, in actual shooting, the photographer's jitter exists objectively and cannot be prevented. The "anti-shake" function of the machine can only relatively reduce the image blur caused by the photographer's hand shake, and it is not a panacea.

As for the role of anti-shake, it is mainly because there is less light entering the lens when using telephoto, so it can only be exposed for a long time, and at this time, the slight tremor of the hand will produce virtual paste, so optical anti-shake is still useful without a tripod.

For example, if you shoot a scene, you need to use the safe shutter speed of 1/500s, but after turning on the "anti-shake" function, you can shoot at the shutter speed of1125s (four times slower) to keep the photos clear.

Therefore, with the anti-shake function, you can often show your talents when shooting sports scenes, macro works and telephoto clips in low light.

Benefits of anti-shake: Under a certain shutter, anti-shake technology can solve the problem of hand shake well. Anti-shake on a small DC machine is especially important for beginners, so as to take clearer photos. But anti-shake technology will also reduce the clarity of imaging. After all, there is a floating lens in the lens. This is also unacceptable for more demanding photographers, so this is why all anti-shake systems have a switch, and users can choose to cancel or turn on anti-shake. In addition, the anti-shake system consumes a lot of power, so the anti-shake switch is generally not turned on, and it is only turned on when it is used.

But when it comes to this, it doesn't mean that you can't buy a camera without anti-shake. On the contrary, some cameras with good functions, although not anti-shake, are very sought after by photographers, because technology is more important than machines to achieve "anti-shake". It can be seen that everyone admires the "iron fist kung fu" of some photographers in the photography forum. As long as the technology reaches home, you can take clearer photos than using the "anti-shake" technology under the unsafe shutter.

In addition, if you shoot outdoors most of the time and the light is good, you don't have to consider too many anti-shake problems. Because as long as the shutter is up, there is no need to "shake". Also, if you really want to "shake", then no technology will surpass the anti-shake effect of "tripod". For example, if you want to shoot a night scene, any anti-shake technology is futile, and only the tripod is the most anti-shake, hehe. In addition, when using the tripod, you must turn off the "anti-shake", because the tripod does not shake, but the camera's "anti-shake" function will "shake" itself, so we see that some "anti-shake" cameras use tripods, and the photos are even more blurred, hehe.

Of course, when choosing a camera, under the same conditions, anti-shake is better than no anti-shake. Of course, the price is more expensive, but if you want it, it's better to buy one with anti-shake function. Just turn off the function when not in use, hehe.

Here, we should also pay attention to one problem. The anti-shake function is only an additional function, so it is necessary to prevent merchants from taking anti-shake as a gimmick. At present, anti-shake can be divided into three types: optical anti-shake, CCD anti-shake and natural anti-shake (ISO anti-shake). Generally speaking, optical image stabilization and CCD image stabilization are true image stabilization, while natural image stabilization (ISO image stabilization) is false image stabilization at the expense of image quality.

In addition, although countless people have repeatedly emphasized the importance of "anti-shake" to telephoto digital cameras, is it really cost-effective to spend hundreds of dollars on an anti-shake? If you have hundreds of dollars, buying a high-quality tripod will not solve the problem better! And does it look more professional? In fact, even a digital camera with anti-shake function has limited applicability. This is because anti-shake is not everything. Although under the same lighting conditions and the same focal length, the anti-shake model is indeed better than the non-shake model, it is impossible to take clear photos without a tripod at night and indoors with or without anti-shake. On the contrary, in the case of sufficient light, clear photos can be taken with or without anti-shake, as long as the shutter speed is fast enough.

Anti-shake function

People who come into contact with digital cameras for the first time often have such confusion. The photos taken are not clear enough, and there will always be ghosting or blurring. The reason is that the shutter speed is too low, except for occasional out-of-focus (that is, the camera can't focus normally). Generally speaking, under the hand-held condition, the shutter speed for taking clear photos should reach the reciprocal of the focal length or even higher. For a simple example, the equivalent focal length of the lens of Canon A75 is 35mm- 105mm, so the shutter speed at the wide-angle end should be kept at least 1/40 seconds to ensure that the photos taken are clearer, while the shutter speed at the telephoto end should reach1125 seconds. And if the lighting conditions at the scene can't meet this requirement, it's not so simple to take clear photos. As you can imagine, for those products with optical zoom of 10 times, anti-shake technology is even more essential, because the telephoto end of these products often reaches more than 370MM, so the shutter speed must be above 1/400 seconds to be qualified, otherwise it can only be worse than sighing.

The concept of anti-shake was first put forward by Nikon Corporation of Japan, and in 1994, a pocket camera with shock absorption (VR) technology was introduced. The following year, Canon of Japan introduced the world's first lens EOS 75 ~ 300mm f/4 ~ 5.6IS with image stabilizer, where IS is the abbreviation of image stabilizer, which is also known as "anti-shake system".

In fact, in actual shooting, the jitter of photographer's hand during film or CCD/CMOS exposure is objective and inevitable. Only a special mechanism can be used to reduce the image blur caused by photographer's hand jitter. So far, anti-shake is divided into three types: optical anti-shake, electronic anti-shake and CCD anti-shake. At present, digital camera manufacturers with optical anti-shake function include Canon, Nikon, Olympus, Konica Minolta, Panasonic and Sigma.

After understanding the above categories, let's take a look at what excellent anti-shake models are available now.

1, Panasonic operating system (optical image stabilizer)

2. Canon is (image stabilizer)

3. Konica Minolta as (Anti-shake)

The benefits of anti-shake, under a certain shutter, anti-shake technology can solve the problem of hand shake very well, and anti-shake on a small DC is particularly important for novices, which can take clearer photos. But at the same time, anti-shake technology will also reduce the clarity of imaging. After all, there is a floating lens in the lens. This is also unacceptable for more demanding photographers, so this is why all anti-shake systems have a switch, and users can choose to cancel or turn on anti-shake. In addition, the anti-shake system consumes a lot of power, so I usually don't turn on the anti-shake switch, only when necessary.

So, don't completely believe in anti-shake. The key is to try to use a safe shutter or a faster shutter. Try to use a good tripod if possible.