Jiehua photography

Now many mobile phones have dozens or even 100 times of super telephoto lenses, and some brands also take the clear moon as their selling point. But to tell the truth, the optical zoom multiple of most mobile phones is 2-5 times, and the effect of other focal lengths is the result of clipping and algorithm on the original image.

To be honest, photographing the moon is a bit unreliable. Some mobile phones have built-in various moon models in advance, and then put corresponding models on them according to the moon photographed by users. Finally, you get a relatively clear picture of the moon.

In fact, the use rate of telephoto lens in mobile phone photography is 2-3 times at most, and it will be used 5 times occasionally, at most 10 times. As for 30 times, 50 times and 100 times, they all belong to digital zoom, which has no practical value, and more is just a marketing gimmick.

In many people's minds, it seems that the higher the pixel of the lens, the better the quality of the photos or videos taken, but this is really not the case. At present, many mobile phones support 50 million, 64 million or even 65.438+0 billion pixels, but photos taken in most modes of mobile phones default to 6.5438+0.2 million pixels, and some even only have 6.5438+0 million pixels.

Only when the high pixel mode is turned on can you take high pixel photos. In the high pixel mode, the mobile phone does not support zoom, and is not compatible with related shooting modes such as large aperture, night scene and portrait. Why is this happening?

Huawei has always emphasized the concept of "computational photography" at the P50 conference. This is nothing new, almost all mobile phones are in use. In fact, it is to combine software algorithms with sensors and modern optics to create a new type of photographic equipment and related applications. It has broken through various problems that traditional digital photography technology is difficult to solve, and has become another new revolution in photography technology.

Many functions of the mobile phone are the result of "calculation", but the ultra-high pixel photos are far beyond the calculation range of the mobile phone. Therefore, the high pixel mode is not compatible with other shooting functions in the mobile phone.

Just like Canon's flagship SLR camera 1DX3, it has only 2065438+ megapixels, because it has to maintain the continuous shooting speed of 20 frames per second. If the number of pixels rises to 50 million, it will inevitably slow down the continuous shooting speed, which is also due to the problem of insufficient computing power. In addition, 2065438+ megapixels can ensure a large enough area of a single pixel, thus improving the high sensitivity performance of the camera.

For a smart phone, the imaging effect depends not only on the number of lens pixels, but also on the lens resolution, cmos area, processor and algorithm.

In my opinion, curved screens are really useless, and I don't like them anyway. Whether taking pictures or retouching pictures, it is easy to touch the edge by mistake. Moreover, the edge of the mobile phone is the easiest to bump, and the probability of screen damage is much greater than that of a straight screen. It's even difficult to put a cell phone film on it. From a practical point of view, the straight screen has more advantages.

Apple mobile phones are all straight screens, including a number of international big-name mobile phones. Oh, sorry, there's a Samsung. Samsung is the pioneer of curved screen, but the problem is that Samsung is becoming more and more straight on its mobile phone.

Dolby Vision is an image quality technology introduced by Dolby Laboratories in the United States, which improves the image effect by increasing brightness and expanding dynamic range. It can improve the fidelity of video signal and make the image very realistic from the perspective of brightness, color and contrast.

Indeed, the video I shot with iphone 12pro max is really good, and all the processes from shooting, playing to editing meet the standards of Dolby Vision. The problem is such a good effect that I can only shoot it myself and watch it myself.

Because most platforms and devices around us don't support Dolby Vision, if I share this video with watermelon video or video number, others won't see this effect, and even the viewing effect is not as good as normal mode.

Perhaps the broadcasting platform and equipment will be popularized in the future, but the current Dolby visual effect is of little significance.

At present, among all the mobile phones I have used, the screen display effect of OPPO Find X3 is the best, and Find X3 is the first full-link 10bit mobile phone in Android.

It can be realized in "shooting, encoding, storing, decoding and displaying", with each step 10bit and each step 10 billion colors!

However, the photos you took with OPPO Find X3 look beautiful on your mobile phone screen. If you share it, it may not be, because not all devices support 1 billion colors.

This is similar to Dolby Vision of iphone 12. Apple believes that Dolby Vision is the future development direction, and OPPO believes that10 billion color is a future direction. As a manufacturer, it is right to be forward-looking. Once their predictions are accurate, they can accumulate some technology and experience in advance. But for users, the current practicality is not high.

There are also old wizards in mobile phone photography, such as those who teach you to shoot night scenes in professional mode.

How many of the four most common mistakes made by novice photographers do you make?

It is said that photography is the art of subtraction, and the key is how to subtract. Five main points make you have rules to follow.

By doing these 7 points, you can also take super-high quality mobile phone photos.