Gels are coloured filters used in photography and cinematography to modify the colour of light. They can be placed over a flash tube or mounted in front of a camera lens to create creative lighting effects or to correct colour temperature.
Gels are commonly used in studio, portrait, and theatrical photography to enhance mood, highlight subjects, or balance artificial and natural light. Understanding how to use gels allows photographers to manipulate lighting creatively, producing visually striking and professionally lit images.