Train the Trainer Part 3: Recording 101
The contrast between light and dark on screen is also a factor in lighting. Low Key lighting is very dramatic and often used in thrillers, horror, and crime stories. Low Key lighting refers to lighting with a high degree of contrast between light and dark. This is achieved by having one dominating light source and nothing to fill in the shadows it creates. Below is an example of a film noir-style lighting scheme that accentuates the dark brooding energy of the genre.
High Key lighting means there is not a lot of contrast between light and dark. High Key lighting is less dramatic and is preferred for instructional videos like ours. It is best achieved by having multiple light sources around the room of roughly equal brightness. This will fill in shadows created by each light without overexposing any particular areas if done correctly. Below is an example of even, High Key lighting. The lighting doesn't highlight anything or any emotion in particular, but the neutrality is ideal for educational purposes.