HMI, or Hydrargyrum Medium Arc Iodide, is a flicker-free, continuous light source designed for use with digital cameras that have a scanning exposure system. It produces bright, daylight-balanced illumination, making it ideal for photography and cinematography.
HMIs are commonly used in studio, film, and video production, providing consistent lighting without the flicker issues that can occur with other types of artificial light. Understanding HMI lighting helps photographers and videographers achieve accurate colour rendering and smooth, professional results.