page_title: Ring flash
hierarchical_section_title: Ring flash
caption_attribution_description: Polski: Lampa błyskowa pierścieniowa Aputure LED HALO HN100 do NikonaEnglish: Ring flash Aputure LED HALO HN100 for Nikon
context_page_description: A ring flash is a circular photographic electronic flash that fits around a camera lens. Unlike point light sources, a ring flash provides even illumination with few shadows visible in the resulting photographs because the origin of the light is very close to the optical axis of the lens. It was invented by Lester A. Dine in 1952 for use in dental photography, but now is commonly used in applications such as macro, portrait and fashion photography.
  As the efficiency of light sources, and the sensitivity of photographic imaging sensors, increased, the use of a continuous ring light instead of a flash increased. A ring light has the same advantages as a ring flash, but produces continuous light at a lower intensity, so the image can be examined before taking the photograph. In the past a circular fluorescent tube was often used; LEDs are now frequently used. Brightness and colour temperature can be changed on some devices. In addition to lights that are fitted to the filter ring of a camera, inexpensive versions that clip onto a mobile phone or other device equipped with a camera are available.
context_section_description: A ring flash is a circular photographic electronic flash that fits around a camera lens. Unlike point light sources, a ring flash provides even illumination with few shadows visible in the resulting photographs because the origin of the light is very close to (and surrounds) the optical axis of the lens. It was invented by Lester A. Dine in 1952 for use in dental photography, but now is commonly used in applications such as macro, portrait and fashion photography.
  As the efficiency of light sources, and the sensitivity of photographic imaging sensors, increased, the use of a continuous ring light instead of a flash increased. A ring light has the same advantages as a ring flash, but produces continuous light at a lower intensity, so the image can be examined before taking the photograph. In the past a circular fluorescent tube was often used; LEDs are now frequently used. Brightness and colour temperature can be changed on some devices. In addition to lights that are fitted to the filter ring of a camera, inexpensive versions that clip onto a mobile phone or other device equipped with a camera (facing away from or towards the user) are available.
caption: An LED-based ring flash
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