TY - JOUR T1 - Optics of Photography.--On a Self-Acting Focus-Equalizer, or the Means of Producing the Differential Movement of the Two Lenses of a Photographic Optical Combination, Which Is Capable, during the Exposure, of Bringing Consecutively all the Planes of a Solid Figure into Focus, without Altering the Size of the Various Images Superposed JF - Proceedings of the Royal Society of London (1854-1905) VL - 15 SP - 455 EP - 459 PY - 1866/01/01/ UR - http://dx.doi.org/10.1098/rspl.1866.0102 M3 - doi:10.1098/rspl.1866.0102 AU - Claudet, A. ER -