A lens can't be enlarged. What's going on here?

1. There are two buttons connected together in the upper right corner or top of the camera, which are generally represented by two triangles.

2. There is a circle around the photo button, and a small handle is connected to the photo button on the circle. Move the handle on the circle left and right.

In film and television, the lens has two fingers, one refers to the optical components used by film cameras and projectors to produce images, the other refers to the continuous picture taken from power on to power off, or the fragment between two editing points, also known as the lens.

One finger and two fingers are two completely different concepts. In order to distinguish, one refers to the optical lens and the other refers to the lens picture. According to the origin of lenses, mainly Japanese lenses and German lenses.

Japanese lenses mainly have good color reproduction, while German lenses have a strong sense of layering. China's lens has gradually occupied a certain market in the market, mainly because the price is relatively low.