Name That Aberration! Before and after images containing aberrations are being projected. Each is through a radially symmetric system, and contains only 1 Seidel aberration (excluding defocus) Which one is it? Justify your answer! As a hint, the wavefront aberration expression for Seidel aberrations are: Spherical: W040p4 Field curvature: W220h2p2 Distortion: W311h3p cos(gb) Astigmatism: W222h2p2 cos2(q) Coma: nglhp3 cos (p Original ' V (c) i (d) Figure 1: Name the aberrations