What is the blur of vovx70 rear camera for?

Blurring is to blur the main elements on the screen and make the subject clear.

When the camera lens shoots at a moving object, some images in the photographic picture become blurred due to the motion of the subject, which is called insufficient motion of the object. In photography, the combination of motion and static can also increase the interest of the picture. This trick is often used to shoot running horses, speeding cars and athletes' hands and feet in stadiums and gymnasiums to show the specific atmosphere of specific occasions.

Vagueness means weakening the accompanying elements and making the main elements more prominent. So blurring includes blurring the background, reducing the color saturation of the background, reducing the color brightness and simplification of the background.