Optimal lighting is a diffused light source that does not create shadows and that displays colors accurately. The camera alone cannot correct lighting problems. Good lighting can considerably improve image quality, even with the use of low-quality cameras.  Lighting is an important element since it has a direct impact on the clinician’s ability to see a patient through good color reproduction, which can be critical in certain cases of patient assessment, as in dermatology, for example. 

The light source should be located above the videoconferencing unit and shine diagonally toward the patient. Direct sunlight on the speakers or cameras should be avoided, as it creates contrast problems.