Depth of field; is a feature that influences the appearance of the photograph, the subject (composition) it wants to describe. The depth of field also affects the formation of bokeh, which is a much loved image in photography. Most photographers are captivated by this basic feature; cloudiness, cloudiness level, cloudiness distance …
What is Field Depth?
It is also called depth of focus, depth of focus, or Net Depth of Field. You can try this now. Lift your index finger. Focus on your index finger. When you focus, you will see other areas blurred. When you remove your fingertip or zoom in, the blur level will change. This is exactly the depth of field.
Well; what are the factors that affect depth of field? How to set the depth of field What is the relationship between depth of field and diaphragm? I have gathered the answers to all these questions under the heading of this topic.
*Factors affecting depth of field
1. Adjustment of Diaphragm
Diaphragm is one of the factors directly affecting depth of field. The larger your diaphragm spacing, the greater your depth of field range. The smaller the aperture, the greater the degree of blur. The increase in turbidity means that more of the soil will come out. The places outside the object are as follows. The diaphragm also affects the intensity of the light, since it is only the depth of the field that is being spotted, I will refer to it at a different time.
* F1.2 Aperture value is clear, other fields are sharp. It’s the dirtier range.
* F5,6 Aperture value in the background, the blur is smooth, the blurring range is wide.
* But watch the following image well. Although the same aperture value, the depth of field is different. Because the diaphragm and distance can not be considered independently of each other.
2. Adjusting Focus Distance
In zoom lenses, we can better realize this effect. See: What is a Zoom Lens? At the same aperture value, the blur and the light value at 50mm, the blur and the light value at 100mm are not one. Assuming that the blur value at 50mm is 2 units, it becomes 4 units at 100mm. So zooming increases the depth of field. If you want to capture quality photos with focal length, I would recommend macro lenses. See: What is Macro Lens? See also: Macro Lens Types and photographs.
You might think, I get 50mm 1.8 prime lens prime lens, 55-250mm 4-5.6 aperture lens, I can get more depth of field. See: What is the Prime lens?
Unfortunately, it’s not as easy as you might think. With a 50mm 1.8 aperture lens, you will get the blur, depth of field and quality of the photo, not the quality of the picture taken with the other lens 250mm. The depth of field obtained with focus distance and the quality of the photo are also directly influenced by the quality of the lens.
3. Changing the distance between the object and the camera
Another factor that affects the depth of field is the distance between you and the object. It’s not a zoom lens, it’s a prime lens disease. Zoom lenste, if you are not at the depth of the object you can zoom the object by zooming to it. Or you can do the opposite. However, in prime lenses, you need to adjust it by moving it back and forth continuously, because you have a constant focal length. So you have to step into the object or step away.
If you do not find the depth of field to be sufficient, if you want to have more, you can zoom back to the object by stepping backwards. If you have a prime lens, you can increase the depth of field by approaching the object and lowering the aperture value. This is more effective in macro lenses. Or if you want to reduce the depth of field, you can do the opposite.
In short, there are three main factors;
1: Move the subject forward or backward
2: You can move yourself forward or backward
3: You can zoom backwards or backward by zooming
4. Triple Solution
None of what I have here is stereotypical. I mean, you can not say “absolutely.” As you take photos, you will recognize yourself and your machine, and at the same time, you will be able to foresee what effect the photo will have on the setting and distance you take.
According to this, you will expose your photos according to your experiences. Therefore, while creating the depth of field, I would recommend that you only examine the results by taking photographs of the diaphragm or focal length, constantly at different settings.