The 308 FPD microscope spectrophotometer from Craic Technologies Inc. measures and compares the spectral output, intensity and color consistency of each of the microscopic pixels commonly found in OLED devices. It measures color and relative intensity on the micron scale, enabling microscopic spatial resolution mapping. The instrument attaches easily to inspection microscopes and probe stations and allows the user to acquire images and spectra of microscopic sample areas quickly. It can be used to measure the color and intensity of each pixel of an OLED display. Pixels then can be compared with one another for consistency, and maps of the intensity and color can be generated for each device. The instrument can acquire spectra on the order of a few milliseconds.