depth of field photography

Depth of field photography Depth of field photography is one of the most loved photography techniques to set the difference between a photographer and an average cheap compact cameras user. […]

Depth of field photography

Depth of field photography is one of the most loved photography techniques to set the difference between a photographer and an average cheap compact cameras user. The reason for this is the fact that the vast majority of people are using low value compact cameras which are not designed for great depth of field effects. The everyday picture you can see everywhere is the facebook type of self portrait of holding a camera, or portrait in the mirror

Depth of field is the effect of having only the subject in focus and the rest of the background being blurry.The image below is one of the extremes of depth of field. It is taken with a macro lens with one of the most narrows depth of fields possible. as you can notice only few mm are in focus and the blurry areas are around

Depth of field photography

I have always questioned to common understanding of the inexperienced photographers talking about the fact the depth of field is a result of the aperture size. This is partially true , however the most obvious drivers for the depth of field is the lens you are using – see sample below taken with an aperture of 2.8 with the 24-70 mm lens from Canon. Even if the maximum aperture has been used, there is still a lot of depth in focus. The background blurred indeed , but not as per the image of the rings above

The best lenses to use in order to obtain the depth of field are the macro lenses and the telephoto lenses. Wide lenses are usually being used for large landscape images where you do not wish necessarily to have any blurry elements. The wider lenses have less depth of field effect and it it becomes obvious when you shoot a subject reasonably close with these lenses.

 

Depth of field can become an obsession, but after a while of using it as a professional photographer, it can become repetitive. The clients will love it though, so remember this in your way of become a photographer.

 

 

In order to understand the depth of field, you need to have a reasonable knowledge of optics but I won’t get into the technical optical details. The only thing to remember is that camera focuses on a subject which is to a certain distance. Subject in focus means a crisp and sharp result. Out of focus means blurry (this blur is not the same blur given by the camera shake)

In theory the focus is only one exact distance however different lenses are able to provide a crisp image within a certain range in front and back of the focus point (in reality we can talk about a focus plane)

 

Mastering the depth of field is obviously important on your way to become a photographer and it will get you a great deal of satisfaction knowing exactly what the camera will capture before pressing the shutter button.

 

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About Christian Tudor

professional photographer, main editor at Academy of Photography and