Depth of Field
Depth of Field (Dof) it’s the technique to control the focus in photography. Let me explain.
If you are taking a landscape, you need to have all the photography on focus. This is called high depth of field. In the other hand, if you are taking a portrait, or a macro, it’s possible that you want only a small part in focus and the rest (normally the background) unfocused. This calls a low depth of field.
Normally, we need a high Dof if you are taking a landscape, architecture photography, photography of group of people or whatever that you need a lot of details.
A low Dof it’s nice for portraits, macro, some still life, etc. In this way, the viewer pay attention in the part it’s on focus.
In my opinion, there are three ways to control Dof:
- If you want to unfocused the background in a portrait for example, separate you subject from the background. Sometimes it’s not possible to do this, but try to think in this.
- Controlling the aperture. If you use a big aperture (low number), you can get a low Dof ideal for portraits. By the other side, if you use a small aperture (high number), you obtain a small Dof. This is useful for landscape.
- And the last one it’s will focal distance. A long distance created a small Dof, and a short distance created a big Dof.
Dof depends of kind of photography you want and the idea that you have in your mine.
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Thanks for reading.