Darren Smith Photography's photographic tutorials are aimed to teach anyone interested in photography the basics in how to operate their camera and what to consider when you move beyond taking "snaps".
This video is all about what depth of field (DoF) is and how it affects your photographs.
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Hello and welcome to the Darren Smith photography tutorials.
This video is all about how depth of field controls how your pictures look
Depth of field can be thought of as the amount of the image which is in focus, this means that in front of and behind the subject becomes progressively more out of focus as you take the picture the depth of field is controlled solely by the cameras magnification and its aperture and since we often set our magnification for a given subject the depth of field is usually controlled by the aperture alone
Wide apertures such as f1.8 to f2.8 give less depth of field whilst narrow apertures such as f16 or f22 give much more depth of field
The lens will have what's often called a sweet spot where the focus is most accurate, typically this is around the f8 aperture
Different focal lengths have different depth of field, for example a telephoto lens always has assured depth of field a 70mm lens with an aperture of f8 will have the depth of field of 13 meters when focused on a subject 10 meters away likewise a 400mm lens set to the same aperture will have a depth of field of 29 centimetres that's 45 times the depth of field just by using a different focal length. This is useful when you do not want any background distractions and solely want to focus on your subject your choice of depth of field should depend on your subject and choosing the appropriate aperture can make or break an image.
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