Lenses for underwater photography

Dratz, 1947, Photographie Sous-Marine: Principes et Realisations, Sci. Industr. Photogr., Fran., 18, 1 Dratz, 1951 Dratz, 1953, Neptunia Dratz, 1953, Revue Optique, 32, 202 Dratz, 1956 Ivanoff, 1951, Optique, C.R. Acad. Sci., Paris, 232 Ivanoff, 1951, Optique, C.R. Acad. Sci., Paris, 1193 Ivanoff, 1951, On underwater photography, J. Optical Soc., Amer., 41, 645, 10.1364/JOSA.41.000645 Ivanoff, 1953, Systèmes optiques pour Photographie Sous Marine, Revue d' Optique, 32 Ivanoff, 1953, Systèmes optiques pour Photographie Sous Marine, Revue d' Optique, 193 Knapp, 1947, Special Cameras and Flash Lamps for High-Speed Underwater Photography, Society of Motion Pictures and Television Engineers, Jour., 49, 64, 10.5594/J12689 Knapp, 1948, The Hydrodynamics Laboratory of the California Institute of Technology, Amer. Soc., Mechanical Engineers, 437 Thorndike, 1950, A Wide-Angle, Underwater Camera Lens, J. Optical Soc., Amer., 40, 823, 10.1364/JOSA.40.000823 Thorndike, 1953, A Correcting Lens for Use in Underwater Photography, Lamont Geological Observatory, Tech. Rept. Thorndike, 1955, Colour-Correcting Lens for Underwater Photography, J. Optical Soc., Amer., 45, 584, 10.1364/JOSA.45.0584_1