What do the front and rear cameras of mobile phones mean?

The front camera of a mobile phone is the camera placed on the front of the phone, and the rear camera is the camera placed on the back of the phone.

Rear 2 million pixels and front 1.3 million pixel cameras means rear 2 million pixels and front 1.3 million pixels.

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. Generally speaking, 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 640 x480. :

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 additional function of the mobile phone, the digital camera function of the mobile phone has developed rapidly.

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.

Reference: Baidu Encyclopedia-Mobile Phone Camera