He uses a great variety of color palettes from nearly monochromatic to highly polychromatic. Speckle patterns typically occur in diffuse reflections of monochromatic light such as laser light. Sepia is considered a form of Black and White or Monochromatic Photography. Image aberrations can be broken down into two main classes, monochromatic, and polychromatic. Lasers can be used as a source of monochromatic light with wavelength formula 20. Using a laser allows for generating almost monochromatic light. Concentric rings are observed when the surface is illuminated with monochromatic light. Excavations at Nishapur show both monochromatic and polychromatic artwork from the 8th and 9th centuries. The graphics are rather plain with simple backgrounds and monochromatic shapes. His art consists of dark, monochromatic portraits. Both sets were capable of reproducing reasonably accurate, monochromatic moving images. The images are often monochromatic and fuzzy. Magnitude is complicated by the fact that light is not monochromatic. Many sources for monochromatic light can be used. Both sets were capable of reproducing reasonably accurate, monochromatic, moving images.