Shedding New Light on Darkroom Illumination
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Sodium Vapor Spectral Lamps
One way to shed new light in the darkroom is the newly designed low pressure sodium vapor safelight using a small sodium "spectral lamp", rather than the large unfiltered sodium bulbs intended for industrial security lighting. The OSRAM Na 10 fl spectral lamp is a small robust lamp, and has an integral dichroic coating to assure an almost pure 589 nanometer output for scientific applications.
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