Can SLR pass the security check machine?

Is there any harm in the security inspection of SLR cameras? Can the SLR camera pass the security check machine? Simao suggested avoiding the daily subway or airport security check. Because the radiation of the baggage X-ray security inspection machine is very small, the impact on the scanned item itself can be ignored.

But there is a special article-film, which is very sensitive to X-ray radiation. According to the experimental results of NAPM on films with different sensitivities from different manufacturers in 1994, the film with ISO 1600 sensitivity did not find any imaging abnormality after 16 x-ray baggage scanning, but found slight imaging abnormality after 100 scanning.

Kodak's advice is that "it is best not to carry out X-ray security inspection for films above ISO400". I am a passionate photographer. In order to practice my photography skills and capture beautiful and moving moments to share with you, I carry a Canon camera bag when I go to work in the company every day. In this case, I have to go through the subway every day and have to undergo security check, so I doubt whether the camera will hurt the camera after security check. ……

Later, after a series of searching for answers and professional technical support, I learned:

1, "X-ray" triggers the photosensitive element, resulting in a reverse current loop, which leads to the electrification of the semiconductor magnetic memory to erase the original photo, and even leads to the short circuit of the integrated circuit of the digital camera, burning electronic components.

2. Any radiation may change the molecular structure and crystal structure, destroy DNA and cause cancer. For semiconductor devices, gamma rays can bombard holes in the PN junction and form impurities, thus making pixels invalid and becoming bad spots. X-rays have the same effect, but the probability is small. Even if it is in a metal box, X will automatically increase the dose when it is turned off until it penetrates to see what is inside. Robot cameras working in the radiation area of nuclear power plants always have many disadvantages, just because they are irradiated.

If you take the subway or plane security check every day or every other day, I'm afraid there won't be any bad spots after one year. However, you just didn't care what caused it. That is to say, your camera has been damaged by a lot of gamma rays or X rays during security inspection. Maybe you have no problem these dozens of times. I really don't know if it will really collapse one day. Photography lovers should pay attention!

So, if your camera has passed several security checks, try to avoid security checks in the future.

SLR cameras will not die after security check. 1, the working principle of SLR camera is lens illumination, the sensor converts the light elements collected by the lens into electrical signals, and then the electrical signals are converted into electronic documents by the image processor. Among them, the sensor and image processor must be powered on to work; 2. The security inspection adopts X-ray perspective. When the SLR is turned off, X-rays enter the sensor inside the camera, but the sensor does not work and will not be damaged. If the sensor is turned on, thermal noise will be generated after X-ray, and long-term thermal noise will burn out the sensor; 3. The film SLR can't pass the security check. After X-ray, the film will be sensitive and all films will be invalid.

You can pass. I travel around the world all year round, no problem.

SLR cameras, whether digital or film, can pass the security check machine. There are security cameras in airports, railway stations or subways to check contraband. So everything has to go through machine inspection.

Before the appearance of digital cameras, there was an obvious green sign "film safety" on the security inspection machine. Now some security machines still have. The security inspection machine is an X-ray machine, which is harmless to digital cameras. But there is no film in the film camera, and it's okay, but if you haven't finished shooting, you'd better check it by hand. All films that have not been filmed or those that have been filmed should be checked by hand.

In the film era, because some films are sensitive to X-rays, the radiation passing through the security inspection equipment may cause exposure or damage to the films, resulting in the decline of image quality, contrast and color saturation. Therefore, after passing the security check, camera submission needs special treatment.

In the era of digital cameras, this problem is still worrying.

There is a saying that X-rays will trigger the photosensitive element in the camera, resulting in a reverse current loop, which will lead to the electrification of the semiconductor magnetic memory, destroy the previously stored photos, and also cause a serious short circuit in the integrated circuit of the digital camera and burn the electronic components.

There is also a saying that radiation may change the molecular and crystal structure, destroy the pixels of the imaging chip and turn them into bad spots. It is said that cameras working in the radiation area of nuclear power plants are prone to bad spots.

I have carried different types of SLR cameras by plane, high-speed rail and security check many times, and so far no abnormal phenomenon has been found. The radiation of security equipment is very low. Theoretically, the imaging chip of the current digital camera will not be affected by the radiation of the security inspection equipment, and will not harm the imaging and mechanical structure of the camera, so it can pass the security inspection safely.

Some airports have strict security checks. For example, in this photo, all the bags are opened and all the photographic equipment is taken out. After checking, put it back. Because there are too many bags, it is slow to put them in, and it takes a lot of effort to open and pack them. So try to reduce the equipment you carry, and don't pack it too full, which is convenient for opening.

Of course, not only SLR, but also film camera and film can pass the security check machine.

I don't know anywhere else. The words "film safety" will be marked on the subway security machine in Beijing. The same is true for flight security. I often travel abroad, and I always take my camera with me for security check.

This can take some good photos in the air, and if the camera is of good quality, it can even take pictures of the starry sky with an iron fist.

Of course, there is another reason. Right now, flight consignment is really too violent. I often drop a corner of my suitcase if I don't pay attention. Clothes and the like don't matter, but if I drop it on the lens or fuselage, the loss will be great, so I will always take my camera with me.

And sometimes there will be an oolong in baggage consignment. If the contents of the checked baggage are more expensive, the loss will be great.

In short, whether it's a SLR or a film machine, don't worry. Just let them pass the security check, no problem.

The content of the website is from Time Club, and the pictures are from the Internet, which has been deleted.

1, I often fly with a SLR camera, and always try to choose a window seat to take pictures of the scenery outside.

2. Most airports in China require that SLR cameras and lenses should be taken out of their bags for separate inspection, which is troublesome and needs to be prepared in advance, but they can all pass the security check smoothly.

3. I have been to more than a dozen countries, and there is no problem in the security inspection of planes, trains and subways. There are loose and strict foreign countries.

Some museums and theaters may have copyright problems and are not allowed to take photos. The camera should be in the bag, not in it. For example, the National Center for the Performing Arts.

I didn't use a film camera. I don't know if there is any problem with the film passing the security check, but I saw the sign of "film safety" during the security check. But judging from the comments of netizens, it should have some influence. It seems that the film should try to avoid passing through the X-ray machine many times.

As we all know, camera film and movie film are sensitive to X-rays, so they are most affected. Some or all undeveloped films may appear strange striped color blocks in different degrees of exposure.

So for SLR, its built-in photosensitive element is basically only sensitive to visible light, and when the electronic equipment is not working or powered on, it will not be as sensitive to light as film, and the radiation generated by X-rays will not remain like radioactive substances. In addition, at present, the X-ray power of most security inspection machines is very low, which will hardly affect the SLR.

SLR is not dangerous, of course, it can pass the security check, but the probability of passing the security check will not affect the internal original of SLR. There seems to be no official explanation for this. My SLR camera often goes through security check. I didn't find any effect.