Credit: Cinémathèque française, conservatoire des techniques, Paris. Film: Test for Jour de Fête.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Subtractive 3 color: Bi-pack and lenticular film recording, duplitized film with toning and silver dye-bleach
“In October, Eggert of the Agfa Research Department, read a paper at the Berlin meeting of the Deutsche Gesellschaft für photographische Forschung, on the Pantochrom subtractive lenticular bipack tricolor process. (Fig. 1) The green and blue ...
Agfa Pantachrom. Source: Arens, Hans; Heymer, Gerd (1939): Die „Agfa-Farbentafel für Farbenphotographie“. In: Veröffentlichungen des wissenschaftlichen Zentral-Laboratoriums der photographischen Abteilung Agfa, Vol. 6, 1939, pp. 225-229. Leipzig: Hirzel. Photograph by Martin Weiss, ERC Advanced Grant FilmColors.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
Schmidt, Richard / Kochs, Adolf (1943): Farbfilmtechnik. Eine Einführung für Filmschaffende. Berlin: Hesse, pp. 54-72. (Schriftenreihe der Reichsfilmkammer, 10.) (in German) [quote id='6']
The procedure for obtaining the lenticular elements in relief required a series of steps: starting from three black and white positive color separations, obtained with any of the available methods, three matrices were printed, from which the film to ...
Projection of lenticular film in Bocca-Rudatis. Refraction of light beams through lens. Source: Pierotti, Federico (2016): Un'archeologia del colore nel cinema italiano. Dal Technicolor ad Antonioni. Pisa: Edizioni ETS, p. 81.
Gerd Heymer and John Eggert (IG Farbenindustrie, Agfa, Berlin, Filmfabrik Wolfen)
Additive 3 color: Lenticular screen
The basic idea of the lenticular film was developed by the German Raphaël Liesegang in 1896 and applied to still photography by the French Rodolphe Berthon in 1908.
The lenticular process applies tiny cylindrical lenses embossed on the film support ...
Color reconstruction. Credit: Gisela Harich-Hamburger, Diplomrestauratorin (FH).
Source: Heymer, Gerd (1933): Auflösungsvermögen und Farbwiedergabe in der Farbrasterphotographie. In: Veröffentlichungen des wissenschaftlichen Zentral-Laboratoriums der photographischen Abteilung Agfa, 3, 1933, pp. 188-207.
Source: Weil, F. (1933): The Optical-Photographic Principles of the Agfacolor Process. In: Journal of the Society of Motion Picture Engineers, 20, (April, 1933), No. 4, p. 301-308.
Both the Kodak and Agfa lenticular processes required the correct banded filter to be used with each different batch of panchromatic film. These two filters were for different batches of Agfacolor used in a Leica camera.. Source: Coote, Jack H. (1993): The Illustrated History of Colour Photography. Surbiton, Surrey: Fountain Press.
Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Magnification 5x, front. Credit: photomicrograph by Silvana Konermann.
Magnification 10x, back. Credit: photomicrograph by Silvana Konermann.
Magnification 20x, front. Credit: photomicrograph by Silvana Konermann.
Reflection on Agfacolor lenticular film. Source: Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. In: Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, pp. 214-222. Leipzig: J. A. Barth.
Reconstruction of lenticular film by Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland in the framework of their research project doLCE
Agfacolor Lenticular sample from the Kodak Film Samples Collection at the National Science and Media Museum in Bradford.
Credit: National Science and Media Museum Bradford.
Photographs by Barbara Flueckiger in collaboration with Noemi Daugaard.
Analog reconstruction by Giorgio Trumpy, ERC Advanced Grant FilmColors
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
“LENTICULAR PROCESS
In 1896 R. E. Liesegang (Ahriman, 1896) suggested a photographic color process based upon the use of banded filters in the camera aperture.
[…]
In 1909 R. Berthon (British Patent 10,611; see also Berthon, 1910a, b) ...
Kodacolor lenticular filter for the projector. Lichtspiel / Kinemathek Bern.
Credit: Rudolf Gschwind, Imaging and Media Lab, University of Basel.
Magnification of an area. Credit: Rudolf Gschwind, Imaging and Media Lab, University of Basel.
Color reconstruction test. Credit: Rudolf Gschwind, Imaging and Media Lab, University of Basel.
Source: Klein, Adrian Bernhard (Cornwell-Clyne) (1940): Colour Cinematography. Boston: American Photographic Pub. Co.
Microscopic linear lens structure of Kodacolor lenticular film.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Acetate plastic base of Kodacolor lenticular film embedded in epoxide resin. The emulsion layer usually placed on the opposite side of the acetate base has been removed beforehand and is therefore not visible.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Focal travelling through the 3-dimensional structure of Kodacolor lenticular film. In the beginning the linear lenticular structure is visible and towards the end the emulsion layer comes into focus and the granular structure defined by the density of the silver is visible. In this shot the lenticules were showing towards the light source and the emulsion towards the camera. This enables an undistorted recording of the emulsion layer.
Credit: David Pfluger, editing by Martin Weiss, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Focal travelling through the 3-dimensional structure of Kodacolor lenticular film. In the beginning the linear lenticular structure is visible and towards the end the emulsion layer comes into focus. In this shot the lenticules were allocated towards the lens of the microscope and the light source at the side of the emulsion similar to the configuration in projection. As a consequence the graininess of the emulsion is not visible as with the film flipped to the other side. The structure is optically distorted perpendicular to the linear structure of the lenticules.
Credit: David Pfluger, editing by Martin Weiss, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Credit: Cinémathèque française, conservatoire des techniques, Paris.
Credit: Cinémathèque française, conservatoire des techniques, Paris.
Credit: Cinémathèque française, conservatoire des techniques, Paris.
Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Microscopic image of a piece of Keller-Dorian lenticular film embedded in epoxide resin. The 3-dimensional structure of the lenticules is visible as well as the thin emulsion layer on the other side of the acetate base.
Credit: Sample preparation and imaging by the Center for Microscopy and Image Analysis, University of Zurich.
Lenticular surface of the acetate plastic base of Keller-Dorian lenticular film. On the back plane of the acetate layer and therefore out of focus in this image, structures defined by the silver image in the emulsion layer can be perceived.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Hexagonal structure of the lenticules of Keller-Dorian lenticular film.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Microscopic images of the Keller-Dorian lenticular structure with the focus set at different points. The images have been chained to show a travelling through the 3-dimensional structure of the bee-hive shaped lenticules.
Credit: David Pfluger, conversion to video by Martin Weiss, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
“R. Berthon patented the use of a lens diaphragm with three apertures, covered respectively with red, green and blue-violet filters, and a sensitive surface on a support, the other side of which was impressed with hemi-spherical, transparent, ...
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Source: Heymer, Gerd (1933): Auflösungsvermögen und Farbwiedergabe in der Farbrasterphotographie. In: Veröffentlichungen des wissenschaftlichen Zentral-Laboratoriums der photographischen Abteilung Agfa, 3, 1933, pp. 188-207.
Additive 3 color: lenticular screen, still photography and film
“Every element of a cross-lined screen acts as a pinhole camera, and reproduces an image of the aperture of the objective in whose rear focal plane it is placed. Thus, when using a square stop, the dots in the halftone produced will be square ...
Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.