Chapter 3
Lenses
In This Chapter
• Learning what a lens is
• Understanding how to extend your vision with lenses
• Knowing the difference between prime lenses and zoom lenses
• “Digital zoom” and its uses
Because light is gathered by the lens before it enters into the camera, the lens is the next most important link in the chain between optical image and video. The choice of lens therefore makes all the difference in the world in the look of your video.
What Is a Lens?
A lens is defined as a transparent object that gathers and refracts light. Refracting light is “bending” it, changing its course. The lenses we use in photography and video refract light toward their centers, which allows them to form a focusable image.
There is a simple way to ...
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