Huawei Honor 7x Device Training page 28

3.6 Dual-lens camera
What are the advantages of a dual-lens camera over a normal camera?
The Honor uses a dual-lens camera. The quality of images and photo shooting experience have been
improved through image processing and recognition. Compared with the traditional single-lens cameras,
dual-lens cameras have advantages in wide aperture shooting, quick focus, image definition, and noise
control.
Is one of the lenses the primary lens and one the secondary lens?
Yes. The left one look from the back of the phone is the primary one, and the right one is the secondary
one.
The primary camera is the RGB camera, while the secondary camera is the pixels monochrome camera.