From the course: Exploring Photography: Finding the Perfect Portrait Lens
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The four factors that influence DOF
From the course: Exploring Photography: Finding the Perfect Portrait Lens
The four factors that influence DOF
All right. So how is it that we can create a shallow depth of field which is so important for portraiture? Well unfortunately, there isn't a magic button which you can press on your camera which will generate this effect. Rather there are four factors, which influence our ability to create a shallow depth of field. The first factor has to do with our sensor size, here you can see I have a sensor which I removed from an old camera. The larger the sensor size the greater your ability to capture an image with a shallow depth of field. For example if we think about a smartphone for a moment, you can imagine that the sensor inside of here is really, really teeny and because of that we aren't able to capture images on our smartphones which have a shallow depth of field. But if we move up say to a full frame camera well that will give us that ability. So the first factor is sensor size. Next it comes to our lenses and our focal lengths. Here you can see I have three lenses. One which is a…
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