To put it simply, depth of field is the field of focus formed in front of and behind the object, person, or subject being photographed. The most important benefit of depth of field is that it allows us to sharpen any object or objects in the subject while blurring the rest. In other words, it allows us to highlight the area that we want. It is one of the most important elements that contribute to the beauty of a photograph when used correctly. The most important parameters to consider when using depth of field are aperture, shutter speed, and ISO. We will be able to take excellent photos if we properly set up this trio.
So, how do we adjust the depth of field? If you’re new to photography, you might be wondering, “How can I make the back of the photo blur?” We will try to discuss it briefly in this article.
The aperture setting is the first thing we need to know. The depth of field is inversely proportional to the aperture size. As a result, as we open the aperture wider, the depth of field decreases. The greater the depth of field, the smaller the aperture. However, depending on the lighting conditions, we may not be able to fully capture the depth of field.
The focal length adjustment is the second thing to understand. The focal length provided by the lenses you use influences the depth of field. The depth of field decreases as the focal length increases.
The third concept to understand is “Distance to the Subject.” One of the factors influencing depth of field is the distance between the camera and the subject to be photographed. As you get closer to the subject to be photographed, the depth of field narrows.
To summarize, aperture has a greater influence on depth of field. The depth of field is increased by narrowing the aperture. In other words, background blur can be achieved by using smaller f-values.
Aside from these, it is possible to make these settings automatically with the use of special lenses and today’s technological advancements. However, doing it by hand will provide you with much better clarity.