Field of view, or FOV, typically refers to the widest capture potential of a camera and lens. Like our discussion around mono versus stereo, FOV can apply to both cameras and how content is displayed. The diagram here shows what FOV means in relationship to a camera. To keep things simple, this image depicts the field of view for a 2D camera, but the same idea still applies to 360. When we're talking about the FOV of 360 cameras, the maximum is 360 degrees. But that doesn't necessarily mean you'll use all of it. You can still also use 180 degrees, which keeps the view front-facing. One example being that you can upload VR180 videos to YouTube today. Meanwhile, field of view also applies to how much is viewable in any given moment in a headset. This image shows the same scene at different FOVs to give a sense of what you're able to see as the field of view changes. The wider the FOV in the headset, the more immersive the overall experience will be. Having a larger FOV means that areas can be masked in post-production programs to correct stitch lines. But we'll revisit that in module four's advanced techniques section.