When purchasing a high-quality camera, do not dwell on the standard settings. In this article, we will explain why a function such as a diaphragm is required, and how to use its capabilities.
Physically, the diaphragm of the camera is a petal that covers the lens and transmits a certain amount of light. The better the lens, the more petals are mounted on it, and the more beautiful the blur effect is achieved. We will not talk in words what photographs can be obtained, but we will show everything clearly.
These photos depict children, and at first glance the photos are almost the same. But in the first image we clearly see the boy in the background, and in the second - the background behind the girl is all blurred. Just note that this is far from the maximum degree of blur, and manually (in Photoshop) the same effect is impossible to achieve.
Now we explain how the aperture of the camera was adjusted in both cases. In the first photo, the aperture is closed, as a result of which we see the whole picture clearly. In the second photo, the diaphragm is more open, which is why the boy is not visible. We examined this and it is clear to us that with a maximum open aperture we get a blurry background, and with a closed hole - a clear one.
In almost all cases, the aperture on the camera is indicated as “f /” and a number, which indicates the degree of openness of the gap. At first, it will be difficult for you to remember all the values, so it’s enough to know that the smaller the number, the more the background is blurred, and the more, the more visible the objects in the background. The following picture shows the standard values that are present even in ordinary soap dishes. You see how the aperture changes depending on the indicators.
Despite the fact that the aperture priority function is also present on compact cameras, it is impossible to achieve a blurred background effect on them. In order to understand the difference, just try out SLR and professional cameras. Believe me, differences in quality will be noticeable to the naked eye. And the number of functions and settings will amaze you. Do not rush to learn everything at once and first deal with each parameter individually, and only after that select the manual mode and compose them.
In the photo with a ladybug, it is clearly visible that the diaphragm is fully open. Such a picture can be taken with any professional equipment, regardless of the brand - Nikon, Canon. The camera, most importantly, should be a mirror or professional.
In conclusion, it is worth saying that the aperture of the camera can focus on a specific object, highlighting it and blurring the background. The above photo with a ladybug clearly shows this effect, because you only see an insect, and the rest is not so important. A closed aperture of the camera is necessary when taking pictures of the street, landscapes, crowds, where it is required that all photos are in focus.
As you can see, here everything is not as complicated as it seemed at the beginning, but before moving on to the further study of the art of photography, practice well at this stage.