Abstract: An imaging lens system is disclosed comprised of a first optical element, a second optical element, and a third optical element. The first optical element is a conventional lens, while the second and third optical elements are metalenses. Each metalens produces a phase profile according to Zernike Polynomials. An adaptive phase wrapping may be included to enable large area metalenses. The disclosed system is distinguished from the prior art for its practicality. The best mode of the system follows with optical powers for the three elements to be positive, negative and positive, respectively.