Why do smartphones have multiple cameras, and how do you choose the best?

How many cameras? This question became the first thing we hear when we launch a new phone, and often the answer is three or four cameras, and we also saw five cameras. What is the secret to that? And why do smartphones have multiple cameras? The addition of the camera to the phone more than 20 years ago allowed a new vision for the use of phones, as our life today and the relationship of individuals with their smartphones has become centered around a group of lenses in the body of the phone. For example, social media and all work and distance learning applications that have become part of the daily routine of millions of individuals, would not have appeared without the camera in the phone, imagine Facebook and Instagram, for example, without the cameras in the phones! We never would have seen them. You can let your imagination run wild in other examples of life and things that would not appear without the cameras in the phones.

Why do smartphones have multiple cameras?

What we are discussing today, why are so many cameras in one phone, why are companies not satisfied with adding one camera to phones? There is no doubt that adding more cameras was for the purpose of improving the imaging performance on the device as a whole, but let us delve more and learn together in a simple way about the importance of multiple lenses in the smartphones that we have today. The phone camera is not like a professional photography camera, no matter how accurate and powerful the camera in the smartphone is, it is difficult to compare it with professional cameras, it is simply

represented in the large size difference between the lenses, the camera lens in the phone, regardless of its size, does not reach 10 millimeters, while the smallest sensor In a DSLR camera, for example, its size is 22.2mm x 14.8mm, almost three times that of most sensors in phones. This difference in the size of the lens and its small size on the phone makes the task of photographing with one lens a bad idea, because the pixel area here on the phone camera lens is not comparable to the pixel area on the professional camera. The image is basically made up of small units called pixels, and the more pixels the image becomes better, which is easy to apply to professional cameras, but on the phone camera the company is in trouble: either reducing the pixel, which means a bad image, or splitting the lens Small pixels into many infinitesimal pixels, which makes the image blurry. From here came the idea of ​​adding an additional lens that helps collect the details that the main lens cannot handle, and by using software, the details from both lenses are combined into one image to produce a clearer image full of details.

The difficulty of the ability to optical zoom is also the ability to zoom is a problem faced by phone makers when trying to develop the camera, despite the wonderful capabilities that smart phone cameras have, but it lacks an important component of the professional camera, which is optical zoom, in the past, the zoom in phones was based on The software is only “digital zoom”, but with the addition of more lenses, “telephoto” telephoto lenses have appeared, which provide optical zoom that makes the image more detailed. Oppo Find X2 Pro is the latest example of the importance of multiple cameras! A vivid example of the development and importance of the zoom lens, we find the “Oppo Find X2 Pro” phone that offers three distinct cameras, a 48-megapixel wide-angle primary camera, and a 48-megapixel ultra-wide second camera as well, but the most important thing that helps these two cameras perform their functions well. It is the third camera that includes a telescopic telephoto lens that offers optical zoom up to 5 times, hybrid zoom up to 10 times, digital zoom up to 60 times and superior accuracy in details. This flagship phone from OPPO has the best camera in the world according to the DxOMark index, which praised the performance of the phone’s camera, as the cameras here offer real quality and excellent imaging options, as we mentioned the telescopic camera here with a 13-megapixel camera, supports optical zoom up to 5X, hybrid up to 10X, digital zoom up to 60X , Which is a high level of quality that we do not find on some other leading phones.

From the actual experience of the phone, you can read the full phone review from here, we find that the zoom in the camera gives excellent details when using 2X zoom and when using up to 5X zoom, but when the 10X hybrid zoom may lose some accuracy, the hybrid zoom cannot be compared to the quality of the optical zoom . The Oppo Find X2 Pro main camera has a wide lens with an f / 1.7 lens, a focal length of 25 mm. It has a high ability to capture details and is characterized by autofocus via PDAF phase detection and a dual OIS optical image stabilizer. And the second ultra-wide camera, with an f / 2.2 lens slot with a focal length of 17 mm, and this lens allows autofocus, and can be used as a macro camera also for close-up photography from a distance of no more than 3 centimeters, and the phone also uses it to take depth information when photographing in portrait mode. These three cameras are a concrete example of the importance of multiple smart phone cameras, although an increase in the number of cameras does not necessarily mean higher performance. But here we are in Oppo Find X2 Pro in front of three cameras that provide true image quality that photography enthusiasts can touch by simply opening the camera application on the phone. The Oppo Find X2 Pro camera has a neutral appearance for images in lighting and color accuracy, or in other words, the phone provides images that are closer to realism, unlike Samsung phones, for example, which give more saturated colors and look better in the view of some, but do not represent realistic colors.

The camera also has a good level of isolation when using Portrait mode, which is expected, especially with the presence of this number of cameras and reliance on the wide-angle camera to take the isolation details instead of relying on the software to perform this function. The most important point is the ability of the Oppo Find X2 Pro camera to balance lighting and give a high dynamic level of HDR lighting even in the most severe shooting conditions such as shooting under direct sunlight or photographing people against strong backlight. Even the night shooting mode here gives a longer exposure time, which causes the camera to saturate with more light, so you get a bright picture with a lower noise level. The camera has a dedicated ultra-long exposure mode to get usable images when shooting in extremely black lighting conditions. It can capture stars in the sky. This distinctive experience and harmony in colors, accuracy and high quality provided by the Oppo Find X2 Pro camera, we would not have seen it if the company relied on one or two lenses, but it was necessary to add three lenses here, and this number is not a matter of stacking.

Multiple smartphone camera types and their importance

In the Oppo Find X2 Pro camera, we saw three advanced types of cameras, each one of them provides multiple functions that prevent the phone from adding more lenses, but on other phones we may hear about other types of lenses, so we will review with you the types of smart phone cameras and the most popular lenses that are Their use in phone cameras, and the function of each of them is simple, so that it is easy for you to evaluate any phone’s camera, just by looking at the types of lenses in it.

Main camera: The first camera is often of higher resolution, and it takes pictures in normal shooting mode well, and its quality increases according to the auxiliary lenses with it. Wide Angle Camera: This lens has a small sensor aperture and a wide angle, to capture more details that the main lens cannot record. Sometimes the main lens is the same wide-angle as the one in the Oppo Find X2 Pro, but it is not capable of the additional ultra-wide angle lens in the same phone.

Telephoto zoom camera: It is a lens with a large focal length through which it can capture distant objects. The function of this camera is to provide real optical zoom and not just digital zoom. Previously phones used to rely on digital zoom, which is just a trick of the phone, where it was The idea of ​​\ u200b \ u200bthe pixels is cut into smaller pieces, so the digital zoom estimates the colors to fill in these blanks, so this was not a real

approximation but just a trick from the phone. With optical zoom, the telephoto lens is able to capture more details and objects that are truly distant without compromising image quality when zooming.

Depth isolation camera: One of the first cameras that was added to the side of the main camera, it is able to recognize what is near and what is far in the scene and this is through which the image and scenes in the background are isolated and the portraits are produced. However, it is not very common in modern phones now, due to the ability of the wide-angle lens to do the same task. In some phones, it is replaced by a ToF camera that does the same thing, but with more accuracy because of its ability to scan the scene in 3D.

Monochrome camera: The last type with us from the basic types of phone cameras is the monochrome lens, and it is used to output images in black and white only, and its role here is to help the main camera produce clear images full of color in low-light and night photography modes. But this camera is not very popular, and the development of software now has become to do this task without the need for more lenses. Now that we have come to these words, I hope that things have become clear and we know why smartphones have multiple cameras, and also, dear reader, you have the ability to easily distinguish the types of cameras and evaluate any phone based on the type of cameras in it without falling into the trap of marketing deception for some phones that It promotes itself with a lot of cameras that offer no real value to the user.


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