How to make a painter's paint brush?

The second thing about photography is that it contains many elements. You can regard it as both an art and a science. To some extent, creating with a camera is the same as creating with a brush, but photographers who attach great importance to equipment in photography must understand the characteristics of cameras and lenses. However, because photography is so profound and involves so many elements, many people will have many misunderstandings and fallacies about it, and many friends who are beginners in photography are misled unconsciously. Therefore, we specially concocted this article to share with you some photography problems that are often misunderstood. Myth 1: The higher the contrast of the lens, the higher the resolution. Some photographers will find that when shooting with a certain lens, the contrast of the image is high (generally called hard) or it looks sharp, so they blurt out that the resolution of a certain lens is first-class. Once you look at a photo with weak contrast (which is often said to be soft), the image resolution of the channel lens will be very poor. This statement seems a bit arbitrary. In fact, resolution and contrast are two different things and should not be generalized. Of course, there are also some related places. What is resolution? Resolution is actually data obtained through some standard tests. It uses a black-and-white line chart and shoots with lenses with different apertures. However, the most standard data should be read by the machine. However, some magazines or experiments use film imaging for artificial judgment, which seems to have some objective factors, such as film processing or human eye limitation, but it is generally acceptable, because at least the same lens can be found in different situations (different apertures or focal lengths). Generally speaking, the more lines that can be analyzed in the same range, the higher the resolution, that is, the sharper the lens. What is contrast? Although contrast does not represent resolution, it is not irrelevant, but it cannot be said that high contrast leads to high resolution. Contrast actually refers to the ability of the lens to express darkness. An image must have two contrasts, bright and dark. High contrast means that the separation of light and shade is obvious, and there may not be too many layers); In the middle. Low contrast means that the light and shade are not obvious enough or bright enough, but there are many layers, which may make people feel dull. For color or black and white images, the definition of contrast is the same. Most people misunderstand that high contrast is good, yes, high contrast is indeed more vivid and brisk, but without rich layers, the high resolution just now loses its meaning and will hinder the overall detailed performance. However, there may not be a standard for truly subjective things in contrast, but a more comprehensive lens will be more popular. Moreover, the current films also have good contrast and layers, and there are different choices, such as films specially designed for portraits and films specially designed to restore accurate colors. Photographers don't have to pursue them too blindly.