The CMOS and CCD sensors in digital cameras are sensitive to infrared and (near) UV. These sensors nearly always come with infrared and UV filters to keep them

The CMOS and CCD sensors in digital cameras are sensitive to infrared and (near) UV. These sensors nearly always come with infrared and UV filters to keep them from recording things you don't see. If you are willing and able to hack your camera you can remove this filter to create a camera sensitive from near UV to true IR, ca. 200nm to 900 nm. You'll have to change the lens to make use of the UV part of the spectrum as optical glass blocks most of it. This answer on PSE gives a nice overview: http://photo.stackexchange.com/questions/2262/are-digital-sensors-sensitive-to-uv http://photo.stackexchange.com/questions/2262/are-digital-se...