The function and characteristics of the standard lens

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[ Huaqiang Security Network News ] The lens can be divided into many types, which can be classified according to the focal length, the aperture division and the lens expansion adjustment. Let me introduce the functions and features of the standard lens.
Lens
Standard lens: For example, an interchangeable lens for a 35 mm single-lens reflex camera, which is usually a photographic lens with a focal length between 40 and 55 mm, is the most basic type of photographic lens in all lenses.
The standard lens gives a realistic visual effect picture, so in actual shooting, its frequency of use is higher. However, on the other hand, since the picture effect of the standard lens is very similar to that of the human eye, the picture taken with the standard lens is very common, and even can be said to be very "flat", it is difficult to obtain. The dramatic effect of rendering a wide-angle or telephoto lens. Therefore, it is not easy to shoot a picture with a standard lens. Even a senior photographer thinks that it is not easy to use a live standard lens. However, the visual effect of the standard lens has a natural closeness. When shooting with a standard lens, the distance from the subject is also moderate, so it is used more often in photography situations such as ordinary scenery, ordinary portraits, and snap shots. The commemorative photo is more often taken with a standard lens. In addition, it is easy for photographers to overlook that the standard lens is also a lens with excellent image quality, which is very effective for the performance of the subject details.

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