1) Sharp, compact, and light

　　 In the past, almost all cameras were sold with 50mm lenses. Standard lenses have always been the basis of photographic lens systems. The standard lens is both light and compact, making it ideal for handheld shooting. For everyday photography, this focal length is also very useful, and standard lenses are generally very cheap. The maximum aperture of the prime standard lens can achieve f/1.4 or f/1.8, which is much larger than other lenses. Not only the viewfinder is bright, but also the photographer can achieve successful shooting in low light.

　　 In addition, the fixed-focus standard lens usually has excellent optical quality, and the sharpness and image quality are also quite good. However, in recent years, a series of high-quality zoom standard lenses have squeezed the standard fixed focus lens to one side, and consumers prefer the flexibility of standard zoom lenses.

　　 35-70mm (2x zoom), 28-85mm (3x) or 24-105mm (4x) zoom lenses are all standard zoom lenses Ranks. They are designed to replace 50mm prime lenses. Standard zoom lenses are of course very useful. Today, their optical quality has the ability to be comparable to that of 50mm lenses. However, the 50mm lens should not be ignored. No lens has such high image quality, large aperture and sharpness, but only at such a cheap price.

　　2) The focal length is not completely new

　　 Although the standard lens design lens may not be very dynamic and the field of view is not wide, There is also no magnification of a telephoto lens, but we should not think that this focal length is nothing new. The standard lens is still a very necessary tool in our daily photography. Its deformation is very small, and it naturally expresses the perspective relationship. Still life photography, landscape photography and street photography are very practical.

　　Many world-renowned photographers love standard lenses very much. For example, about half of Henri Cartier-Bresson's works were shot with standard lenses. At the focal length of 50mm, you can constantly move around the subject to find the most interesting point of view to compose the picture. In fact, no focal length is boring and uninspiring. The decisive factor is yourself.

　　Wide-angle lens photography composition skills:

　　 No matter what focal length lens is used, a good composition is required. But when using a wide-angle lens, the requirements for composition may be more stringent. Because they cover a large field of view, many elements will appear in the picture. Therefore, you need to carefully choose the perspective of the shooting, and arrange the elements in a certain logical and pleasant aesthetic way.

　　The wide viewing angle can create a very dynamic composition effect, which can express greater depth than a telephoto lens. This is due to their exaggeration of perspective, making close-up objects look more prominent and pushing far-away objects farther. We can make good use of the wide-angle composition effect of this optical lens.

　　 If the end is close to the object in the foreground, the exaggeration will be stronger. Using their wide viewing angle and large depth of field, it is easy to shoot clear and sharp images throughout the screen, starting from a few centimeters and continuing to infinity. Of course, this requires the use of a small aperture and focusing on the hyperfocal distance.

　　Using the characteristics of a wide-angle lens to exaggerate foreground objects, this shooting method can be used in various scenes, such as indoor environment portraits, and even sports and wildlife shooting. But this is most suitable for landscape photography to make the foreground more prominent and attractive.

　　In good photography, all elements coexist harmoniously. When shooting wide scenery with a wide-angle lens, the composition can be divided into three parts: the foreground, the middle part and the background. Each part should have a place to attract people's attention. The point of interest in the foreground can be any element-rocks, reflections, flowers, pedestrian bridges or paths. The middle part is the transition between the foreground and the background, and the background is usually the horizon and sky.

　　 Split the image in this way, make sure that each part is a supplement to the other parts, your picture can attract the audience's attention, they will instinctively again and again Transition from foreground to background at once. This wide viewing angle composition method is very effective, you can also shoot dynamic, three-dimensional effects without special effects lenses. The long focal length lens tends to compress the perspective due to the narrow field of view, and it is difficult to achieve such an effect.

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