What's good about a fixed-focus lens? When is it appropriate to take pictures with it?

For photographers and people engaged in photography, the lens is an indispensable item in daily life. The lens is also known as the sharp weapon of the photographic battlefield, so the importance of the lens for shooting is self-evident. Compared with zoom lens, fixed focus lens has many advantages, such as small size, easy to carry, higher reduction, sharper imaging, stronger blur ability, more suitable for beginners and so on. Fixed focus lens is more suitable for portraits, still life works, food posing and so on. The first advantage of fixed-focus lens is its small size, light weight and portability. Fixed-focus lens has simple structure, few optical elements, much lighter than zoom lens with the same focal length, and simpler operation and application, which is suitable for newcomers to practice their hands and create works. The second advantage of fixed-focus lens is its low price and high cost performance. It is not difficult for us to know through search that the price of zoom lens is several times more expensive than that of fixed-focus lens, and some newcomers often hesitate to buy it, so it is the best choice to start with fixed-focus lens, such as Canon's? Small spittoon? Lens, Nikon's 50 fixed lenses, are all good choices. The most outstanding advantage of fixed-focus lens is its strong background blur ability. Fixed-focus lenses often have large aperture values, such as? Small spittoon? The aperture of the lens can reach 1.8, which can take a shallow depth of field, blur the background and highlight the subject. Photographers often choose to use fixed-focus lenses when shooting portraits, such as 50mm, 35mm and 85mm fixed-focus lenses, which are also necessary lenses for many photo studios and photography institutions. The fixed-focus lens also has the advantages of less deformation and sharper image quality. Because the optical elements of the fixed-focus lens only need one focal length imaging work, the optimization and correction of imaging are very synchronous, so the photos taken with the fixed-focus lens are clearer and more beautiful to the naked eye. However, the fixed-focus lens is not omnipotent. For example, if we want to shoot distant scenery, we need to use zoom lenses together. Interested people can try more real shots and really feel the charm of the lens.