Traditional Culture Encyclopedia - Photography major - Why can't the current mobile phone replace such a high-pixel camera?
Why can't the current mobile phone replace such a high-pixel camera?
First, "pixel" is only a parameter of camera products. Many "little white" users always use the "pixel" level to measure the grade of cameras and mobile phones, which is one-sided and wrong. If let the mouse elder brother make a metaphor:
Pixels are like people. Population is a parameter to measure a country's strength, but it is not that the larger the population, the stronger the national strength. For example, Indonesia, Bangladesh and Nigeria all have a population of more than 1 100 million, but these countries are still backward, and their strength is far from that of Japan and Germany.
In the above metaphor, it involves a question of population quality. The comparison between mobile phone and camera products has a similar situation! The high pixel of mobile phone is based on low color depth and low signal-to-noise ratio. Just like the population of those "failed countries", it sounds bluffing, but its quality is too low to be completely transformed into qualified labor and troops. The pixel size of a camera is 10 ~50 times that of a mobile phone, and the imaging quality is naturally incomparable to that of a mobile phone pixel!
Second, "photography" is a knowledge with "art" connotation. Nowadays, many "new generation" Xiao Bai are used to the rapid updating iteration of scientific and technological products, so it is not applicable to apply this thinking to photographic equipment!
Be reasonable:
Computers ten years ago and mobile phones five years ago are all digital rubbish.
But cameras 20 years ago, cameras 50 years ago, and cameras 100 years ago can still play a role today!
For example, Brother Mouse is filming with a 60-year-old "Graffi XL" full manual camera and a modified Polaroid back. Moreover, if the photos taken are compared with the PK clarity and sharpness of mobile phones, there is no advantage at all, let alone digital SLR cameras. But Brother Mouse likes this antique camera very much.
Why?
Because this antique camera is equipped with Fuji's wide Polaroid photographic paper, the film has charming colors, which makes me never tire of watching it. The film taken by the digital machine is clear and sharp, but it lacks the warm and harmonious feeling of Polaroid photo paper. Can this be replaced by mobile phones or even digital cameras?
Therefore, for small white users, it is absurd to understand the effect of photos as the level of pixels.
Third, mobile phones are limited by physical size and can never replace professional cameras. Simply put forward three arguments:
1, the imaging principle of mobile phone camera and digital camera is the same, and all camera technology of mobile phone can be "transplanted" to camera products. It is nothing more than the high performance of the mobile phone processor, which was enjoyed a few years in advance. As long as the performance of the image processor keeps up, camera products will soon keep up with these new functions.
For example, the software simulation of mobile phones is fuzzy, and Sony's latest ZV 1 camera has been equipped with this function.
So the relationship between mobile phone and camera is "gun and cannon". There is no opposition between the two, nor is it a life-and-death relationship. What the mobile phone can do, the camera can do it, and it can do better.
2, the mobile phone sensor has a performance bottleneck!
For a simple example, the wavelength of red light that the human eye can see is about 0.78um, while the pixel of the mobile phone has reached 0.7um, which means that the CMOS sensor of the mobile phone can no longer reliably absorb red light information. In other words, at present, the pixel of mobile phone sensor has reached the physical limit!
3. The size of the mobile phone cannot accommodate the high-performance lens.
Through the examples around us, we should find that fewer and fewer people take pictures with mobile phones, and instead, more people will take pictures with digital cameras. The advantages of mobile phones are convenience and portability. Although the imaging quality and pixels of the mobile phone have been greatly improved, the pixels of the camera are still much higher than those of the mobile phone, so that the current mobile phone still cannot replace the camera with high pixels. Why?
The lens of a mobile phone is too small to image, especially when the light is bad. The lens of the camera can be telescopic, but the size and size of the mobile phone are limited, so it is difficult to achieve the same imaging effect as the camera. Especially in dark light, the imaging quality of the camera is better and overexposure can be avoided. Mobile phone shooting night scenes can only improve ISO, and high ISO brings a lot of noise.
The mobile phone can't adjust the shutter speed and aperture size with the shooting state to create different shooting effects, nor can it change the focal length. But these cameras can do it. If it is used for home photography, a smart phone is enough. If there are higher artistic requirements, mobile phones can't replace cameras.
Pixel is not the only reference standard, and the saying that "the bottom layer is crushed to death" is not groundless.
Just like the car is getting better and better now, it can break 100 in a few seconds, but it can't be directly off the track. No matter how high the pixel of the mobile phone is, the size of the photosensitive original is a little bigger than a small nail, which is insurmountable. Just like a small house of 20 square meters, even if all the furniture is decorated with the most space-saving design, it is still not as big as a house of 100 square meter.
The basis of judging a camera is CMOS, aperture,
And the pixel is at the back. Only when these are put up, the extra points of that pixel will be more obvious.
From the perspective of SLR, there are half frames and Quan Huafu, mainly CMOS size. Many hardcore players mostly hold Quan Huafu. With such a body as the foundation, we can get twice the result with half the effort.
The size of CMOS is related to the amount of light entering. If CMOS is larger, the imaging effect will be better, even at night.
The CMOS of the mobile phone has risen from the size of mung bean to the size of soybean at most, but no matter how it rises, according to the current mobile phone structure, it is impossible to be as big as the CMOS of SLR, so it can only be improved in some corners, such as pixels, anti-shake and dynamic photography, which is indeed better than the traditional SLR, but this is not the main improvement factor. While the iron is hot, you have to be hard, and upgrading CMOS is the most important thing. Therefore, if you want to be professional, you still need to use a SLR. More than a decade ago, the old-fashioned SLR is also qualified for the still photos of mobile phones.
I bought a mobile phone four years ago and didn't get a new one until 6 18. I thought the novice function would give me a strong effect, but CMOS is really important, and I always feel that no matter what my mobile phone does, I usually don't take a SLR when I go out.
For example, if CMOS, aperture, pixel, anti-shake ... form a bucket tray, then the CMOS of the mobile phone is the bottom tray of the bucket. If this plate can't be raised all the time and other plates can be made higher, then the water in the bucket can only be kept like this without adding water.
Simply explain, the high-resolution pixels of mobile phones are pseudo-high-resolution pixels, while the high-resolution pixels of cameras are actually determined by the cmos size, as many as there are. The high-resolution pixels of mobile phones are interpolated by computer algorithms, not real high-resolution pixels. Once put on the computer, it will be exposed immediately. The 36 million mobile phone photos are not as clear as the 2200 pixel camera photos after being enlarged on the computer!
? In short, the size and area of mobile phone chip and camera chip are different, and the imaging is also different. The so-called pixels are composed of dense lines per unit area, and the size of mobile phone chips is five or six times larger than nails!
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