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| Ultraviolet Photography utilises the wavelengths of light normally invisible to the human eye. For successful UV photography two filters are normally needed to eliminate the visible and infrared wavelengths - a UV Pass filter - which allows UV light to pass but blocks visible light - and a "Hot Mirror" filter which blocks Infrared wavelengths. |
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Thursday 18 March, 2010 |
Acratech Ball Heads
Weather Protection
