Lighting influences the atmosphere of a photograph. High-key photographs are associated with upbeat, positive feelings. Using one main key light and avoiding contrast can help you produce photographs that convey a happy mood. This technique is popular with wedding and portrait photographers. It’s also often used in classy advertising campaigns. © Kevin Landwer-Johan What is your key light? Your main light source is your key light. It can be light from any source. The sun on a cloudy day is…