Is the aperture bigger, the better?

The reason is simple: although a large aperture is beneficial to portrait shooting, the larger the aperture, the better. So for the aperture of the lens, please remember three points: 1, it is not correct to open the maximum aperture at any time. 2. It is unwise to blindly pursue the theoretical optimal aperture at any time. 3. Only the point closest to the best aperture value, while ensuring no jitter, is your best aperture value. This can only be discovered by personal experience. Creating depth of field through aperture is a common technique in photography, but the larger the aperture, the better. Aperture is an important criterion to measure lens performance. We often use the maximum aperture of the lens to indicate the strength of the lens. The larger the maximum aperture, the stronger the lens. Therefore, many friends habitually open the aperture to the maximum when shooting, thinking that this can give full play to the performance of the lens. Actually, it's not like this. Each lens has an optimal aperture value. Although the best aperture value of each lens is different, it is basically certain that the maximum aperture value is not necessarily the best effect. It should also be noted here that the best aperture value we often say refers only to optical quality. From this point of view, the best aperture value in the parameters is the result of the laboratory. For you, the only way to know which aperture value is the best is to take more photos of the same object to feel it, and find the point that can ensure no jitter and produce the sharpest image quality. If you feel that your groping is troublesome, there is another simple way, which is to reduce the maximum aperture by two steps. At this aperture value, good imaging results can often be obtained. However, this method only applies to some shots, not all shots. For example, Canon's 50mm F 1.4 fixed-focus lens, its best aperture value is F8, which has dropped by 5 steps.