11 LANGFORD'S ADVANCED PHOTOGRAPHY Figure 11.15 VisiblelightmineralfluorescenestimulatedbyUVradiationofvariousfluorescentminerals,photographedusingaUV blockingfilter(BaaderUV/IRCutfilter).©DrKlausSchmitt,Weinheim,www.uvir.eu.CollectionKerstenKreinerHeidelberg. this job, but you might want to filter out some reflected parts of the visible spectrum, using appropriate colour filtration, to allow mostly the coloured fluorescence to pass through. Apart from flowers, minerals are good subjects for creative photography as well as especially designed plastic jewellery, day-glow inks on posters and graffiti sprays (Figures 11.14 and 11.15). Even washing liquid, face powder and teeth will glow to a greater or lesser extent. Some parts of banknotes and labels for consumer products will also fluoresce when illuminated with UV. Measure exposure from the fluorescing parts using regular techniques with your camera or light meter. Spot measuring is often best. Always be aware of the danger of UV lamps, so use UV-absorbing goggles. Underwater photography fish and plant life. However, you may also want to take underwater pictures of products, ranging from industrial equipment to fashion items, or simply people swimming (Figure 11.16). Figure 11.16 Animpressiveangleonthebutterflystroke,showinghowanOlympic swimmerexpelsairunderwater.ChrisSmithtookthissportshotsittingatthebottomof thepoolusinga35mmlensonaconventionalSLRcamera. M ost underwater photography is intended to show Yet another facet is record photography of wrecks, archaeological objects or marine engineering subjects. You can photograph small objects, fish and plants in a glass-sided aquarium. True underwater photography, however, means shooting with your equipment submerged. Apart 320