Why can a camera take pictures? What is a camera called that can take a picture as soon as you take

On the negative of the camera, there is a very thin layer of silver bromide. Silver bromide decomposes when it sees light, and because the object blocks the light, a part of the silver bromide does not decompose, which produces an image. That's why negatives are easy**.

In addition, due to the refraction of the convex lens, large objects are reduced to a certain proportion on the negative.

Because there are some substances on the film (such as silver bromide) that react when they encounter light, and depending on the intensity of the light, they react to different degrees, and when the light through the camera lens is cast on the substrate, the material on the film reacts and leaves traces of the object. Then through the processing process, the image of the negative can be displayed

POLA is an instantaneous, one-shot imaging camera. In 1947, the Americans invented the primary imaging film, and the Polaroid camera was produced by the Polaroid Company. This invention made it very convenient for tourists to take photographs without being affected by the processing services that were still very uncommon at the time.

This camera uses special film that is automatically developed immediately after shooting. Pulled out of the camera or automatically ejected after shooting is already developed**. The photographer can see the effect of the shot immediately.

People who play lomo often say that lomo is a kind of attitude to life. This low-end point-and-shoot camera is best used in a primary imaging camera.

The shackles of traditional photographic art are liberated between randomness and blur. Don't think about it, shoot at will This is the attitude of lomo, no lighting, no composition, just record every picture your eyes see at will, and also record your heart, your touch, your boredom, your thinking ......The attraction of Lomo is that the camera and the person are in a completely equal state. Lomo doesn't tie the photographer, you just have to press the shutter constantly.

Its pleasure lies in the shooting without photography, with the most primitive and unnoticed fool-like machine to shoot the most realistic images when others are not noticing. No flash, no telescopic lens, no composition, Lomo only cares about how you feel.

POLA is more straightforward than Lomo, and it may have been used more in photo booths at tourist attractions for a long time. But it has no lack of humanity, and when POLA was born, it was followed by many people around the world, the most famous of which was the contemporary artist Andy Warhol. Nowadays, people who play pola say that playing pola is to share the joy of shooting in time.

That's what makes POLA so appealing. Whenever I am with my friends, laughing, tearful, touched, and excited, I don't want to record these wonderful moments, and share and reminisce about this feeling in time. Pola's instant capture is exactly what it requires.

If you are using a vivo phone, the camera cannot be used as follows:

1. If the software can't open the camera, go to Settings - Application and Permissions More Settings - Permission Management - Find the corresponding software - Turn on the camera, and turn on the "Use Camera" permission in Single Permission Settings;

5. Firmware upgrade;

6. If the above methods are not solved, you can bring your mobile phone and valid purchase voucher to the customer service center to deal with, pay attention to WeChat *** "vivo" or "vivo customer service" to inquire about the address of the service center**, it is recommended to contact before going to ensure that there is a staff reception and then go over, so as to avoid delaying precious time and running in vain.

You first have to determine which brand of camera it is, then look for the three-guarantee voucher that was given to you when you bought it, see if the warranty period has passed, and then determine the damage status, man-made damage or the quality of the camera itself.

Then contact the platform customer service or the physical store to understand the repair-related issues.

The imaging principle of the camera is:

The lens of a camera acts as a convex lens, and the light from an object passes through the lens of the camera and converges on the film to form an inverted, shrunken real image. Compared with traditional cameras, traditional cameras use "film" as the carrier of their recorded information space, while the "film" of digital cameras is its imaging sensor, and it is integrated with the camera, which is the heart of digital cameras. Digital cameras use photoreceptors to convert optical signals into electrical signals, which are then converted to analog and recorded on memory cards.

Like the eyes, there are all sorts of things in the traditional camera imaging process:

Through the lens, the scene is focused on the film.

The photosensitive agent on the film changes with the loss of the photofinch date.

The photosensitive agent that changes after receiving light on the film is developed and fixed by the developer to form it.

Images that are opposite to the scenery or complementary in color Digital Camera Imaging Process:

1.The light is focused on the CCD or CMOS through the lens.

or CMOS converts light into electrical signals.

3.It is processed by the processor and recorded on the camera's memory.

4.Images are formed through computer processing and electro-optical conversion of monitors, or by printing by printers.

The specific process: The digital camera focuses the image on the CCD CMOS of the imaging element through the optical system, converts the photoelectric signal on each pixel into a digital signal through a D converter, and then processes it into a digital image through DSP and stores it in the storage medium. The light enters the camera from the lens, and the CCD performs color filtering and light sensitivity (photoelectric conversion), and "decomposes" the photographed object into pixels one by one according to a certain arrangement, and these pixels are transferred to the "analog-to-digital converter" in the form of an analog image and image dismantling signal, converted into a digital signal, transmitted to the image processor, processed into a real image, and then compressed and stored in a storage medium.

The reflected light of the scene is converging through the lens to form a latent image on the film, which is the result of a chemical reaction between the light and the emulsion on the film. The image is then developed and fixed. The digital image of the camera is different from the principle of film imaging, which is imaged on the CCD by the lens, and the photoelectric conversion of the CCD is used to generate the first signal, and then the image is generated after the electro-optical conversion of the display screen.

In the case of digital cameras, if you turn off all the flashes, etc., and press the camera button when the battery is sufficient, but you can't take pictures, it should have nothing to do with the battery. Please check the focus problem. 1. The shooting environment is not lit enough, and the camera cannot focus; 2. The body is unstable, and the camera cannot focus accurately; In this case, it is possible that you will not be able to take pictures even if you press the shutter.