PR-810L Pritchard Photometer
PR-810L Ultra Low-Level Photometer is easy to use, portable solutions to photometric measurement requirements. Using the largest of the 4 fully automated apertures, the PR-810L an measure 1E-6 (0.000001) footlamberts. A fully automated Neutral Density (ND) filter turret provides 3 decades of filtration (10X, 100X and 1000X attenuation) resulting in a 900,000,000:1 dynamic range in any aperture - wide enough for any contrast measurement task.
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Photo Research, Inc
9731 Topanga Canyon Place
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