With a ring flash, it is also easier to take photographs of the oral cavity with adequate lighting. 3 The use of a ring flash avoids the lens-shadow effect caused by a traditional flash. 2 Other authors have argued that the use of flash in dermatologic photography can lighten skin tone, reduce contrast, and produce luminous reflections or shadows. Some authors recommend flash photography, which makes it possible to use a smaller aperture and guarantees uniform lighting and color-temperature conditions in all photos. Lighting is another important characteristic in dermatologic photography. Mirrorless cameras allow the use of fixed-focal-length lenses, which provide higher image quality than the zoom lens of a traditional compact camera. Since the advent of the mirrorless camera, it is now possible to purchase small, lightweight cameras with large sensors and interchangeable lenses, thus combining the portability of a compact camera with the quality of a single-lens reflex (SLR) camera. The only way to achieve a short focal length with such a camera is to use the wide-angle position, which causes the subject to appear distorted. Until a few years ago, the lenses on smaller (compact) cameras were not interchangeable and had low macro capability (an important characteristic in dermatologic photography). 1,2įor dermatologists, it is important to have a small, lightweight camera that is portable and easy to use. Photographs provide an objective method for recording various skin conditions and allow rigorous measurements and assessments. Photography is an important element of dermatology and the day-to-day activity of dermatologists.
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