| GENERAL CHARACTERISTICS ITEM DESCRIPTION | QUARTZ PRISM TYPE,0.185 TO 1500 MU,W/MICROMETER TYPE WAVELENGTH DRIVE WAVELENGTH CALIBRATION CHART,MTG BASE,0 TO 2 MM ADJUSTABLE SLIT WIDTH,10 MU DIVISIONS WAVELENGTH SCALE,F/7.6 EFFECTIVE APERTURE LESS THAN 0.6 PCT AT 265 MU STRAY LIGHT EFFECTS OF ADJACENT RADIATION,200 TO 1000 MANOMETER LUMININOUS AND RADIANT WAVELENGTH CALIBRATION |