September 8 news, according to the blogger @ Mai Zijuni revealed that the iPhone 13 has re-designed the camera, the "ghost" phenomenon no longer exists.
The phenomenon of "ghosting" on Apple's iPhone has been around for a long time and has plagued many iPhone users. The so-called "ghost", that is, when the iPhone shoots certain highlight scenes at night, it will print a shadow in other areas. Users are especially obvious when shooting light boxes, street lights and other scenes.
Take the iPhone 12 Pro as an example, its main camera is equipped with a 7P lens, this "P" refers to Plastic (plastic), that is, the main camera has 7 plastic lenses built-in. The principle of "ghosting" formation is that the light incident into the lens, most of it enters the sensor imaging, a small part will be reflected through the plastic lens to the outermost glass, and the light is reflected to the sensor through the glass, thus forming a ghost. The iPhone 12 uses sapphire glass, which has a lot of hardness and the phenomenon of "ghosting" is also much more obvious.
The phenomenon of "ghosting" affects the user's experience. When taking pictures, if just like the picture above, a line of text appears in the night sky, users familiar with "ghost shadows" will not be surprised. But if it is like the picture below, a green hanging street lamp appears out of thin air on the night path, which is still a bit crazy.
"Ghost" has a greater impact on the video, there is a "ghost" dangling around on the video screen, which affects the attention of the audience, the audience is easy to be attracted by the "ghost", which is not conducive to the creator's video content expression.
Not only will Apple's mobile phones encounter this problem, but the official support document for Huawei mobile phones also mentions the solution to this problem. Huawei advises users to avoid shooting directly at the glare, while Apple advises users to move the camera and change the position of the light to reduce the generation of "ghosting".
In addition, dirty mobile phone lenses will also aggravate the phenomenon of "ghosting". Huawei officials suggest that when users shoot to produce a "ghost" phenomenon, they may wish to wipe the lens in one direction with a clean soft cloth and avoid attaching a film to the mobile phone lens. But these are ultimately palliative, not the root causes, and to truly solve this phenomenon, the interior lens should be redesigned to minimize the phenomenon of "ghosting".