An optical aberration that causes off-axis points of light to blur into a comet shape. The image distortion occurs when rays of light enter an optical system that isn’t parallel to the optic axis.
 
Also Known As
- Coma Aberration
 
An optical aberration that causes off-axis points of light to blur into a comet shape. The image distortion occurs when rays of light enter an optical system that isn’t parallel to the optic axis.