How to shoot the starry sky at night and what preparations are needed?

First, we need to prepare a portable and stable tripod. Because the exposure time of shooting stars is long, the environment is sparsely populated and windy, it is very important to prepare a stable and durable tripod and tripod head. In terms of lens, because most of the photography in Hoshino needs to shoot the vast starry sky and foreground, fisheye lens and super wide-angle lens are commonly used to shoot the starry sky. Generally, we will choose 14-24mm, 16-35mm or fisheye lens. The wider the aperture, the easier it is to shoot, which can not only reduce the smear phenomenon (except shooting the star track), but also reduce the sensitivity and noise interference in the same exposure time. In addition, in Hoshino photography, the fixed-focus lens is a big killer. For example, Canon 14mm f/2.8L II and Nikon 20 mm f/ 1.8G ... usually use the maximum aperture when shooting. The final position must be far away from the city lights.