Larger sizes and esoteric types can get expensive. You will have to devise a filter holder. Ultraviolet Fluorescence Photography Fluorescence ultraviolet photography involves photographing the glow or fluorescence produced by some minerals or other substances when excited by ultraviolet illumination. In the case of fluorescence photography it is usually desirable to minimize reflectance imaging so as to emphasize the fluorescence. These filters are typically placed over the lens.
Eye damage is possible with UV illumination in the UV-B or shorter wavelength region.
Never look directly at a UV-B light source. Even reflected illumination from a UV-B light source can be harmful. Always exercise great caution when working with UV-B illumination. The damage it can do to your eyes is irreversible. Exposures always need to be determined by trial and error since fluorescence is unpredictable.