Monochromatic aberration

In optical apparatuses such as curved mirrors, lenses or prisms, chromatic aberrations, i.e., unintended separation of colors, may occur. However, when optical aberrations distort monochromatic light the effect is called monochromatic aberration.

There are 5 known monochromatic aberrations:

1. Spherical aberration
2. Coma
3. Astigmatism
4. Curvature of field
5. Distortion (optics)