Hoffman LS-65-8D / LS658D Luminance / Radiance Standard

The Hoffman Engineering's LS-65-8D is a self-contained Calibration Standard for Luminance, Radiance, and Correlated Color Temperature. The LS-65-8D is a microprocessor-controlled instrument that offers precise control of luminance from 0 to 2000 footlamberts and correlated color temperature from 1800 to 3100 Kelvins. The temperature-stabilized detector array assures high precision in fluctuating ambient environments. The micrometer-driven aperture provides precise linear control of luminance levels without affecting color temperature.

Standard / controller only, without the sphere.