Third-order ones are described by the Seidel coefficients, and in general they can be described using (*) Zernike polynomials.
A group of mathematical constructs used to describe these phenomena is made simpler to use via Noll ordering, and which act as a basis over a circular support. Schwarzschild's perturbation eikonal was originally used to study these phenomena. The nisen bokeh effect occurs when overcorrecting for one of these, which is least noticeable within the circle of least confusion. Third-order ones are described by the Seidel coefficients, and in general they can be described using (*) Zernike polynomials. Two versions of this phenomenon occur due to different wavelengths having different speeds and a device not being parabolic; those versions are the "chromatic" and "spherical" varieties, the latter occurring because rays do not cross at the focal point. For 10 points, name these optical phenomena in which images are distorted.
A group of mathematical constructs used to describe these phenomena is made simpler to use via Noll ordering, and which act as a basis over a circular support.
optical aberration