First, the advantages of fixed focus wide angle compared with zoom wide angle: \ x0d \ 1. The fixed-focus wide angle is generally larger than the zoom lens covering the corresponding focal length segment. The aperture is above 2.8, and the luminous flux is large, which is convenient for shooting in low illumination. \ x0d \ 2。 A fixed-focus wide-angle lens is generally shorter than the shortest focusing distance of a zoom lens. The shortest focus distance has many advantages, especially for wide-angle lenses. A short focus distance means that you can get close to the subject and get a big picture. Moreover, by using their large aperture, the wide-angle background blur effect that zoom wide-angle lenses can not easily achieve can be realized. \ x0d \ 13。 Fixed-focus wide-angle lenses are generally smaller and lighter than zoom lenses with corresponding focal lengths. Easy to operate and capture. \ x0d \ 4。 Wide-angle fixed-focus lens is generally better than the wide-angle segment of zoom lens, which is determined by lens design, mainly because the number of fixed-focus wide-angle lenses is small. \x0d\\x0d\ 2。 Disadvantages of fixed-focus wide-angle contrast zoom wide-angle: \x0d\ The only disadvantage of fixed-focus wide-angle lens is that it is inconvenient. When the viewing position or distance needs to be adjusted, it can only be achieved by the photographer's movement, and there is nothing to do in some occasions that are not suitable for movement.