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Clever usage can lead a viewer to certain parts of your image and increase photorealism by correctly mimicking a real-world lens.
RenderMan provides controls for realistic and compelling images with depth of field. There are also options that are non-physical but great for creating art-directed imagery.
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| Warning |
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| The render cost of depth of field can be high as it generates noise that needs many more samples to converge. But the result can be impressive. |
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To begin using DOF in Blender, go to the camera data properties 
for the camera that you want to to render DOF from, and click the checkbox next to Depth of Field, as shown below.
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