Coma
Coma is an aberration that causes off-axis points, like stars, to appear comet-shaped. It gets worse as the aperture of the lens increases. This aberration is especially noticeable in astrophotography and nighttime landscapes.
Coma becomes more prominent in images taken with a wide aperture setting. It distorts points of light away from the center. This can be very distracting in images with pinpoint lights against a dark background. Lens manufacturers combat coma by designing complex aspherical elements and using sophisticated optical formulas to align light more accurately.
Aberration of Lens
Aberration of the lens refers to the failure of a lens to produce a perfect image. It occurs due to the lens’s geometry and light’s physical properties. There are several lens aberrations, each affecting the image in different ways.
In this article, we will discuss lens aberration, its types, corrections methods, and many more in detail.
Table of Content
- Lens Aberration
- Types of Lens Aberrations
- Curvature of Field and Distortion
- Combination of 2 Lenses to Reduce Chromatic Aberration