What lens is used to take large-scale commercial photos?

If you only shoot some medium-sized goods with 135 SLR, the wide angle is fine, but it is recommended to use a fixed focus of more than 28mm, which has small distortion and good image quality. Generally speaking, large-size commercial photos are enlarged on a large scale with large-format cameras. If you shoot outdoor billboards, you need to use a camera with a camera on the back. This kind of camera, such as Lin Hafu M679, does not necessarily need a wide-angle lens.