Better Video Through Bokeh & Depth of Field (Camera Lesson 04)
Summary: How you creatively use bokeh and depth of field can influence how your audience feels about the films images you create. In this video Ryan covers what these terms mean, and how to use them in filmmaking.
Length: 3:41 minutes
Now that you’ve mastered the six essential terms to understanding digital cameras, in this video I’ll be covering two important terms that affect the aesthetic of your image: bokeh and depth of field.
Bokeh defines the out of focus areas of the of the image. There are different types of bokeh. Sometimes it will be nice and smooth, sometimes there will be hot spots in the center, and other times there will be hot spots on the edges.
It is the build quality of the lens that affects the look of the bokeh the most. The aperture has a direct impact on how round it looks. The more blades there are in the aperture, the rounder it will look. The less blades, the more polygon it will look. There are even some older lenses that have a triangular shaped bokeh.
How a lens corrects for spherical aberration also impacts the look of the bokeh. In an ideal lens all light rays will converge into a single point. In a less precise lens, those light rays converge at different points and that affects how the bokeh is rendered.
What determines good bokeh has a lot to do with personal taste. But generally speaking good bokeh is bokeh that …