Is the 50x optical zoom of mobile phones really useful?

It’s not very useful, 50x is like a telescope.

Digital zoom is actually a kind of pseudo-zoom. In fact, it is a cropping inside the mobile phone, which causes a great loss in photo quality. In fact, I personally feel that the 50x digital zoom does not improve the photo-taking experience much. I don’t know that a picture taken with the 50x zoom technology has completely lost the color that it should have, whether it is noise or noise. All are uncontrollable.

In other words, in terms of photo quality, 50x zoom is not helpful at all. We know that the main factor in taking photos is the parameters of the lens. For example, the outsole of Huawei's imx6 series plus The adjustment of the Leica lens and the optimization ability of the system can take a good photo. Hybrid zoom is the effect of superimposing the photos taken by the mobile phone's optical zoom lens and the main lens through an algorithm. In terms of image quality, it is lower than optical zoom but higher than digital zoom.

But if we really want to talk about the impact of zoom on taking pictures, then we have to mention optical zoom. That is to say, only optical zoom is a powerful assistant for taking pictures, and digital zoom is just a gimmick or Talk about the role of publicity. So for the p30Pro, the real power lies in the 5x optical zoom and the 10x hybrid zoom. This is what really improves the image quality, including taking pictures. The 50x digital zoom is just a promotion.

The English name of optical zoom is Optical Zoom. Digital cameras rely on optical lens structures to achieve zoom. The optical zoom method of a digital camera is similar to that of a traditional 35mm camera. It uses lens movement to enlarge and reduce the scene to be photographed. The greater the optical zoom factor, the farther the scene can be photographed.