Precision Hitachi Diffraction Grating On Precision Mount

B&L Large Reflective Diffraction Grating 5.5 x 6.33 in 400 lines/mm Blaze 9°44′

Diffraction Grating Mirror BH20350 - Severn Analytical SA6503

PerkinElmer AAnalyst 100 Replacement Rotary Mirror with Stepper Motor

Precision Research Spectrophotometer Monochromator / Diffraction grating

PerkinElmer Optima ICP N069-1129 Optical Unit w Vega Plus Controller Working

Perkin Elmer 3X Beam Condenser with Specular Reflectance Accessory - Used