Ultraviolet photography sensor will pick up reflected infrared radiation as well as ultraviolet, which may obscure the details that would be resolved by ultraviolet alone. Most types of glass will allow longwave UV to pass, but absorb all the other UV wavelengths, usually from about 350 nm and below. For UV photography it is necessary to use specially developed lenses having elements made from fused quartz or quartz and fluorite. Lenses based purely on quartz show a distinct focus shift between visible and UV light, whereas the fluorite/quartz lenses can be fully corrected between visible and ultraviolet light without focus shift. Examples
Ultraviolet (Light My Way) as such: "I'd go in and say, 'The song has gone, whatever it is you liked about this song is not there anymore. Sometimes, for example, the song would have disappeared under layers of overdubs." "Ultraviolet (Light My Way)" is written in a 4/4 time signature. The lyrics of "Ultraviolet (Light My Way)" are addressed to a lover, and imply that their relationship is threatened by some sort of personal or spiritual crisis, coupled with a sense of unease over obligations. Indeed, lead vocalist Bono has called the song "a little disturbed". The song opens with 45 seconds of soft