The difference between dual cameras and single cameras on mobile phones

First of all, the pixels of the photos taken by the dual cameras can still only reach the pixels of the single camera, that is to say, the dual cameras are 5 million pixels, and the final photos are still 5 million pixels, not 10 million. of. A single 10-megapixel camera can take 10-megapixel photos.

Advantages of dual cameras:

The main camera is responsible for shooting; the secondary camera is mainly responsible for calculating the depth of field range and spatial information, thereby achieving fast and accurate focusing in 0.3 s.

Better performance in low light environments. The dual cameras can analyze which pixel has a higher degree of restoration of the scene, which can help the mobile phone effectively suppress noise, thereby allowing the picture to have better image quality restoration.

Depth of field photography effect (large aperture photography effect). The two lenses have the ability to detect depth of field under the simultaneous action of the two lenses. The camera provides a "large aperture" photography mode, which can achieve better depth of field effects.

Better low-light performance. This is different from the One M8’s super pixel camera. The dual cameras are two independent modules with their own sensors. The benefit of this is low-light environments. The effect of shooting is better.

Extended information

The digital camera function of a mobile phone refers to whether the mobile phone can take still pictures or short videos through a built-in or external digital camera. As a new feature of the mobile phone, Additional functions, digital camera functions of mobile phones have been rapidly developed.

With the improvement of camera pixels, its shooting effect is getting closer and closer to traditional cards.

Mobile phone cameras are divided into built-in and external cameras. Built-in cameras mean that the camera is inside the phone, which is more convenient. The external mobile phone is connected to the digital camera through a data cable or the interface on the lower part of the mobile phone to complete all shooting functions of the digital camera. The advantage of an external digital camera is that it can reduce the weight of the mobile phone, and the external digital camera is light in weight, easy to carry, and simple to use.

The performance of digital cameras on mobile phones that are still in the development stage should also be in their infancy. Only a few mobile phone cameras have optical zoom functions, but most of them have digital zoom functions. However, I believe that with the development of mobile phone digital camera functions, mobile phones with optical zoom will gradually become available.

In addition, the digital camera functions of mobile phones mainly include shooting still images, continuous shooting function, short video shooting, rotatable lens, automatic white balance, built-in flash, etc. The shooting function of a mobile phone is directly related to its screen material, screen resolution, camera pixels, and camera material.

The main parameters measured by the camera. Resolution (pixels) Resolution is one of the parameters we are most familiar with. The resolution is mainly determined by the image sensor. The higher the resolution, the more detailed the image and the better the effect, but the image takes up more storage space.

The commonly referred to camera pixels are the maximum pixels in photo mode. The pixels in photography (video) are usually smaller. For example, the N97 camera has 5 million pixels, but the maximum resolution in photography mode is only 640x480.

Reference material: Mobile phone camera-Baidu Encyclopedia