Reason: the objective choice is to shoot something closer to what we see with the naked eye, and the standard lens can achieve this goal. Subjective choice is to shoot with a lens that is wider or longer than our naked eye. If the lens is used to express the role's experience in the situation, the audience will understand this visual design as the emotion that the role can feel.
The visual effect that the standard lens can express has a natural intimacy, which makes the standard lens perform well in photography activities such as snapshot, ordinary portrait photography and documentary photography. Moreover, the standard lens has more advantages than other lenses in imaging quality, and it is also very effective in showing the details of the subject.
Extended data
Fixed focus lens selection
1. Affordable: Generally speaking, fixed-focus lenses are cheaper than zoom lenses. Compared with zoom lens, single lens uses fewer lens groups and simpler structural design. Generally speaking, the price of the best fixed-focus lens is only half that of the zoom lens, especially the focal length of 50mm, which is almost the cheapest lens focal length.
Small distortion: distortion is the biggest weakness of zoom lenses. Almost all zoom lenses involving wide angles have obvious distortion problems, while fixed-focus lenses often have small distortion because only one focal segment needs to be corrected and optimized.
In addition, it is worth mentioning that paraxial cameras have natural advantages over SLR cameras in wide-angle distortion, such as 15mm/f4.5, which has no distortion at all.
3. sharper imaging: simple lens structure will naturally bring sharper images, especially those fixed-focus lenses with ASPH aspherical lenses, which can also provide extremely sharp focused imaging under the maximum aperture.
4. Jiao Wai: At the same price, the fixed-focus lens can provide a larger aperture than the zoom lens (in fact, the limit aperture of the zoom lens is F2.8), which means a softer Jiao Wai blur effect. In addition, the fixed-focus lens has more aperture blades, and the aperture close to the circle will provide the most beautiful shot.
5. Adaptability in dark environment: If you have never used F 1.4 lens, you will miss many excellent shooting opportunities in dark environment-indoor concerts, dark romantic cafes, streets at night ... but it is not recommended to pursue the aperture below F 1.2. This kind of ultra-large aperture lens is not only expensive, but also harmful to your vanity.
Reference: Baidu Encyclopedia? Lens? 、
Baidu encyclopedia? Main lens