Shooting skills of depth of field control

Zooming in on the three spheres behind the two pictures respectively, we find that f8 is more stereoscopic than f2.8, and we say that f8 has a greater depth of field than f2.8, so the depth of field is large enough to accommodate the spheres behind and make them in a clear shooting range. On the contrary, the small depth of field can only accommodate the big ball in the focus area, which makes the ball behind blur, highlights the main body and produces a strong three-dimensional sense. So we get a rule that the larger the aperture, the smaller the depth of field, and the smaller the aperture, the greater the depth of field. The aperture here refers to the aperture of the camera, that is, the smaller the aperture value, the larger the aperture and the larger the aperture diameter. So f2.8 aperture is larger than f8 aperture.

It should be pointed out that the minimum aperture of the digital camera used in this test is f8, and the greater the F value, the greater the relative depth of field.

Another advantage of shooting with a long focal length lens is that you don't have to be too close to the subject. In other words, you can take close-ups of objects that you can't get close to, which can play a considerable role in capturing pictures or describing details.

So we get another rule: the greater the focal length, the smaller the depth of field, and the smaller the focal length, the greater the depth of field.

These are two very practical methods to control the depth of field. Using large focal length and aperture can produce small depth of field, blur the background and highlight the subject. This method is more suitable for personal portraits and close-ups. If we describe a big scene and shoot a landscape film in an open place, we need to use enough depth of field to show every detail in detail.

I believe that as long as we make good use of our small digital camera, even if we can't compete with professional cameras, we can make films as good as professional cameras, give full play to the charm of digital and find our own photography fun!

When the object is in sharp focus, all the scenes from a certain distance in front of the object to a certain distance behind it are also quite clear. The distance from front to back is quite clear in imaging, which is called depth of field.

How much depth of field a particular photo should use depends on what information you want to convey with this photo. One of the most important parts is that photographers have the right to choose and control the depth of field of photos when shooting. Intelligent depth of field selection will be an important and creative means.