Editing Ultraviolet (section)

===Photography===
{{main|Ultraviolet photography}}
[[File:UV Portrait.jpg|thumb|upright|A portrait taken using only UV light between the wavelengths of 335 and 365 nanometers]]
Photographic film responds to ultraviolet radiation but the glass lenses of cameras usually block radiation shorter than 350&nbsp;nm. Slightly yellow UV-blocking filters are often used for outdoor photography to prevent unwanted bluing and overexposure by UV rays. For photography in the near UV, special filters may be used. Photography with wavelengths shorter than 350&nbsp;nm requires special quartz lenses which do not absorb the radiation.
[[Image sensor|Digital cameras sensors]] may have internal filters that block UV to improve color rendition accuracy. Sometimes these internal filters can be removed, or they may be absent, and an external visible-light filter prepares the camera for near-UV photography. A few cameras are designed for use in the UV.{{cn|date=May 2024}}

Photography by reflected ultraviolet radiation is useful for medical, scientific, and forensic investigations, in applications as widespread as detecting bruising of skin, alterations of documents, or restoration work on paintings. Photography of the fluorescence produced by ultraviolet illumination uses visible wavelengths of light.{{cn|date=May 2024}}

[[File:Jupiter.Aurora.HST.UV.jpg|thumb|right|Aurora at [[Jupiter]]'s north pole as seen in ultraviolet light by the [[Hubble Space Telescope]]]]
In [[ultraviolet astronomy]], measurements are used to discern the chemical composition of the interstellar medium, and the temperature and composition of stars. Because the ozone layer blocks many UV frequencies from reaching telescopes on the surface of the Earth, most UV observations are made from space.<ref>{{Cite web |title=Observing Ultraviolet Light |url=https://hubblesite.org/contents/articles/observing-ultraviolet-light#:~:text=How%20Do%20We%20Capture%20Ultraviolet%20Light? |access-date=2024-12-14 |website=HubbleSite |language=en}}</ref>