Fotodex.ro

Ultraviolet

ALT: UV

  1. Spectru al luminii sub pragul vizibil (10nm – 400nm).
  2. Filtru transparent făcut, în mod obișnuit, din sticlă (aceasta reflectă mare parte din spectrul UV). Cel mai adesea, este atașat pe obiectivul aparatului fotografic pentru protecția lentilelor.

[Nota editorului]Deși majoritatea utilizatorilor folosesc acest tip de filtru în scop protector, în cazul filtrelor fără tratament optic (optical coating) există riscul apariției unor aberații de difuzie a luminii (flare).

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Radiatie ultravioleta, invizibila cu ochiul liber. Sticla obisnuita este impermeabila la radiatia ultravioleta. Doar Nikon produce un obiectiv care poate fotografia in spectul UV.

Foto Magazine
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Short for Ultra-violet, a portion of the light spectrum with a wavelength shorter than that of visible light, just shorter than the violet end of the visible spectrum, therefore not visible to the naked eye.

Canon glossary
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The ultra violet ray. This is beyond the visible spectrum i.e.it s invisible electromagnetic radiation of the sunlight. UV lenses is very expensive,only Nikon has a offering in its Nikkor lens line.

mirglossary
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a clear, neutral filter that absorbs ultraviolet radiation, with no effect on visible colors. The skylight filter is a UV filter with a pale rose tinge to it.

Photo Tips
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A clear, colorless filter that stops most ultraviolet rays from recording on film. Handy for shooting distant landscape shots, as it eliminates the bluish haze that might otherwise veil the picture.

ritzcamera
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This is an Ultra Violet absorbing filter that helps overcome the abundance of blue in outdoor photographs. Not really necessary in digital photography as the camera’s white balance system adjusts for the colour temperature of the scene. Can be used to protect the camera’s lens from scratching, fingerprints or dirt.

allthingsphotography
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A filter that eliminates invisible ultraviolet light, rendering pictures with higher contrast. This filter can be left on the lens as a lens protector.

nikongrossary
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Obiective Nikkor realizate cu lentile din cuartz, fluorita, etc., si care permit trecerea luminii cu lungimi de unda intre 200 si 900 nanometrii (UV, vizibil si IR).

Foto Magazine
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Part of the spectrum that has a wavelength below 390nm.

ePhotozine
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A colourless filter thats used to absorb UV light and reduce haze when shooting with black & white film.

ePhotozine
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Filtru incolor care blocheaza radiatia UV si lasa sa treaca lumina vizibila.

Foto Magazine
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Tehnica de fotografie, care foloseste obiective speciale, permeabile la radiatia UV, si pelicula special preparata pentru a fi sensibila la radiatia UV, de uz tehnic si industrial.

Foto Magazine