Comparison between photography and mobile phone photography

If you don't have photos at hand, don't compare photos, simply analyze them.

First of all, the reason why mobile phone photos are now considered by many people to be good in quality and color is mainly due to the following reasons.

1, the mobile phone photo application scenario is small. Many people just watch and spread photos on their mobile phones, and the main application carriers are various self-media and social media software. But most mobile phone screens are not more than 6 inches up to now, so looking at photos on such a small screen naturally feels much better. On the other hand, if it is commercial photography, it is necessary. Even ordinary enthusiasts will import photos into large-size screens such as computers or pads, and then use them after post-processing. On the big screen, you will find that the quality of mobile phone photos is not enough at all.

2, mobile phone algorithm support for photos. Nowadays, many mobile phone manufacturers, especially many mobile phones that focus on taking pictures, will work hard on the algorithm of camera taking pictures, and the photos taken are far from the real scene, including but not limited to beauty. Why Apple camera has been compared to the industry benchmark, mainly because it provides absolutely accurate parameters, such as the accuracy of white balance and color temperature. Of course, this year's own beauty, I don't know if Apple will sink. The reason why the camera is called a camera is to pursue the maximum accurate exposure, and it will not add many distortion algorithms to look good when the camera is in phase.

3, fooled by the marketing of mobile phone manufacturers. Mobile phone manufacturers always like to talk about how good their cameras are, how high the pixels are, how many continuous shooting are, how smart they are, and so on. But these are not the most important for professional cameras. As we all know, many professional cameras only have10 to 20 million pixels, but so what?

So what is the core gap between mobile phone cameras and professional cameras?

1. photosensitive element

The so-called bottom layer rolling, the smallest red area in this picture is the size of the photosensitive element of the iphone4s, and the whole gray area is the size of the photosensitive element of the full-frame camera. Full-frame cameras such as Canon 5D series and Nikon D700 series. So what does the size of the photosensitive element determine?

Generally speaking, the photos taken by iphone4s are as big as the red area (4. 13mm*3.05mm), while the photos taken by professional full-frame cameras are as big as the gray area (36mm*24mm), and the photos taken by full-frame cameras are about 68.5 times the size of mobile phones. Even if the mobile phone has 40 million pixels, it is only one-fifth of the size, while the professional full-frame camera has only 10 million pixels, because the bottom is 68.5 times larger, which is far clearer than the mobile phone.

So this is the data of iphone4s. How far has the latest and best camera phone developed today? Just like Huawei mate 20pro, it is only a 1.7+0 inch (7.76mm*5.82mm) photosensitive element, that is, the area that emits green fluorescence on the way. The gap above the order of magnitude of photosensitive elements is a huge gap.

2. Lens quality

We see that the lenses of various professional cameras are large and small, but even the smallest professional lens is much larger than the lens of a mobile phone. That's because the optical structure of professional camera lenses is complex, and the arrangement and combination of lens groups meet various needs, thus producing lenses with different apertures and different focal lengths. In addition, the focus motor and anti-shake module are added to the modern lens of the focus system. Both complexity and fineness are high.

However, due to the size limitation of mobile phone lenses, many lens groups have been used to solve problems that can not be solved by a single lens, such as the limitation of image quality and aperture. Let's take a look at the lens parameters of p20 series.

The main camera of the three cameras in P20 pro is the photosensitive element11.73.4 million pixels, with an equivalent focal length of 27mm and an aperture of f/ 1.8. In fact, the rest of the lens is mainly to make up for the lack of the main camera. For example, the lens of this size is fixed and cannot be used for optical zoom. It can only be used for digital zoom, and multiple cameras are added to provide optical zoom applications. At the same time, multiple cameras take the same photo, which improves the image quality after synthesis.

This is the present situation of mobile phone camera, which has neither arbitrary optical structure nor arbitrary operation. I have to compromise again and again for the size, and I don't know whether to make eight tubes in the future.

The two most important items in the camera alone have become an insurmountable gap on the mobile phone, not to mention the accuracy of exposure, the ability of the camera's processing system, the ability of focusing and chasing light, and the B-door exposure that the mobile phone can't mention so far.

In fact, you should never compare the image quality of your mobile phone with that of a professional camera. After all, many famous camera manufacturers made cameras of this size, not because they didn't want to downsize them. On the contrary, micro-scale is a revolution of camera size by various manufacturers. But the reality is that the size limit of professional cameras is roughly the size of Sony A7 series.

The mobile phone actually changed the life of the card machine at most. After all, the card machine used to be the main portable choice. It is extremely unscientific to talk about image quality regardless of size.

The same scenery, one was taken by Huawei P20pro and the other was taken by Nikon D7000. Which is better?

The first SLR, the second mobile phone

The first SLR, the second Apple 6S, I still like SLR.

The last two SLR images are 100%.

I bought a SLR in order to go to Tibet the year before last. On that day, I made an impromptu comparison between SLR and mobile phone (HTC). I'm not good at taking pictures, but the effect is clear at a glance.

Take a picture with your mobile phone and show it to me?

Take a look at me with your mobile phone, and the person who blows it will pat me.

1 Figure Canon 5D3, 2 Figure Apple 5S.

SLR night scene, mobile phone can't compare.