Question

what are the types of chromatic aberrations?

• A. Transverse
• B. Longitudinal
• C. Linear
• D. Both a and b

Answer 1

The correct option is D Both a and b

There are mainly two types of chromatic aberration one is longitudinal and transverse. Now, longitudinal aberration occurs when different wavelengths of light are focused at different distances from the lens.
Longitudinal aberration is typical at long focal lengths, while transverse aberration occurs when different wavelengths are focused at different positions in the focal plane; because the magnification or distortion of the lens also varies with wavelength. Transverse aberration occurs for short focal lengths.