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Fluorescence Images by Norman Quinn The photographs on this page were taken in Discovery Bay, Jamaica, by Dr. Norman Quinn, Director of the University of the West Indies' Discovery Bay Marine Laboratory. Special note:Several of these photos are extreme macro. This degree of magnification is extremely difficult for fluorescence, since the low light levels make it very difficult to use a high f-number and achieve good depth of field. Dr. Quinn is using a very strong flash at close range, and very high speed film. He is successfully acquiring well-exposed images of very small areas, at some sacrifice in film grain. Technical details: Camera: Nikonos V with 35 mm lens and 1:2 and 1:1 extension tubes Camera filter: NightSea BB58FA barrier filter Electronic flash: Ikelite Substrobe 400 Excitation filter: NightSea BE5 exciter filter Film: Kodak Max and Fuji color Super HG, shot at 1600 ASA F-stop: f8 - f16 Exposure: Flash operated in manual mode, bracket f-stops
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