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diy Long-, Medium, and Short-Wave UV Lamp for Fluorescence Photography

Almost all UV sources used in UV-fluorescence photography work are based on mercury vapor lamps with external filters to narrow down their emissions to a certain range.  Different materials respond to different wavelengths differently, so a single wavelength lamp does not usually suffice to explore the field of UV fluorescence photography.  Most commonly, enthusiasts would


d.i.y. High-Power, Swappable-Head, UV/IR/Visible LED Flashlight with Intensity Control

Some time ago I needed a high-intensity UV/IR/visible light source for a work-related industrial inspection project, so I recruited Abigail to help me build a 10W LED flashlight that features swappable UV/IR/visible heads. We decided to document the build since this flashlight would fit nicely in a photographer’s kit for light painting, IR illumination, UV