Small knowledge of lens

Lead: With the development of digital technology, numbers have been integrated into us. Photography skills emerge in endlessly, and landscape photography is ever-changing. At different times, we will have the problem of changing the shooting distance and choosing the lens, so we should fully understand the knowledge of the lens.

A little knowledge about the lens is the basic unit of the whole movie. Several shots make up a paragraph or scene, and several paragraphs or scenes make up a movie. Therefore, the lens is also the basic unit of visual language. It is the basis of narration and ideographic expression. In the early shooting of film and television works, the lens refers to the sum of an uninterrupted picture taken by the camera from the beginning to the stillness; In post-editing, a shot is a set of pictures between two editing points; In the finished film, a lens refers to a complete segment from the front optical transformation to the back optical transformation.

The following summarizes the common sense of nine-point lens, which is only a theory and does not involve photography art. I hope that all major photographers have gained something.

First, each paragraph? Header? It must be a boutique.

Friends who are keen on photography often mention it? The power of standards? Because whether it is a daily life photo, a portrait photo or an excellent work that won a photography award, there is a figure with a fixed focus of 50 mm, a relatively low price, a large aperture and a moderate focal length, which is undoubtedly a necessary lens for every photographer.

Second, there is no perfect lens.

There is no perfect lens. Many shots have different degrees of "distortion". Even the best quality lens, tested under extremely strict conditions, will have different degrees of deformation and distortion at the edge of the lens, and it is impossible to completely eliminate the distortion.

Third, when the macro magnification is high, moving people themselves is better than zooming.

Fourth, learn to shoot with a fixed focus lens.

Set the focal length of your digital camera to a fixed value, or install a fixed-focus lens to shoot, forcing yourself to use footsteps instead of zooming. In this process, you will find many different shooting angles. Because when shooting at fixed focus, because of the limitation of focal length, people will think more and you will have to make more efforts, so that your skills can be improved more easily.

Fifth, aperture will bring depth of field.

A large aperture can obtain a very shallow depth of field, which means that the subject is clear and the foreground background is blurred. This method is often used in portrait photography to highlight the theme. By adjusting the aperture size, the object can be clearer.

Sixth, prevent hand shaking.

Canon's IS, Longteng's VC and Sigma's OS, even if these powerful anti-shake lenses are installed, your hands are shaking, and the actual picture quality will definitely disappoint you. So when shooting, you should tie the horse stance just to prevent the hand from shaking, and then use your powerful lens.

Seven, the lens is very interesting.

A fisheye lens can produce an extreme effect, which can be used not only outdoors, but also in small shops and cabins. Super wide-angle lens and shift-axis lens are also very fun, and the effect is very interesting.

Eight, remember the pros and cons of the lens

Zoom lenses have advantages and disadvantages. The advantage is that it can be used to shoot various scenes. The disadvantage is that you forget that your steps exist. When shooting birds, you will also find how much you want a lens with fast focus.

Tip:

When you shoot a distant object with a telephoto lens, you can imagine whether it would be better to be close to the subject if you used a standard lens.

Nine, photography is about technology, not lens.

For the last one? A movie? As we all know, excellent scenery (people) is the most important. Playing with a SLR camera is just like practicing martial arts. At the end of the exercise, you will be surrounded by grass and trees. As the saying goes, a bull's head is a dog's head, and a dog's head is a bull's head. Actually, it's all good. This is the ultimate form of friends.