Squaring on. Achromatism. False centering. Astigmatism. Spherical aberration. Zonal aberration. Perfect figure. The star image. Mechanical strains. The relation between the form of curves and the optical effect of flexure. Terrestrial telescopes. Reflectors. The knife-edge method of testing. The Cooke photo-visual objective. General treatment of objectives. Appendices.
copy_featured
F
