“The Warner-Powrie process patented in 1905 was the earliest commercial process using a screen made with bichromated colloid. A glass plate was thinly coated with bichromated gelatin or fish glue and exposed to light through a screen having ...
Additive 3 color: line screen plate, still photography and film
“The most successful of all the screen processes was the one initiated by Louis Dufay. Today the product is known as Dufaycolor, but it was first introduced about 1910 as the Dioptichrome plate. The first Dufay patents were assigned to an ...
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.
Clare Livingston Finlay (Thames Colour Plate Company of London)
Additive 3 color: regular mosaic screen (circles), separate system, still photography
“Thames Colour products originated from a 1906 patent by Clare Livingston Finlay (d. 1936) and were introduced commercially in England by the Thames Colour Plate Company of London in 1908 (Fig. 2.10). Color screens were obtained by repeatedly ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 30.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 63.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 69.
“Thames Colour products originated from a 1906 patent by Clare Livingston Finlay (d. 1936) and were introduced commercially in England by the Thames Colour Plate Company of London in 1908 (Fig. 2.10). Color screens were obtained by repeatedly ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 30.
Magnification 20x. Credit: photomicrograph by Silvana Konermann. Source: Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, pp. 214-222. Leipzig: J. A. Barth.
Magnification 10x. Credit: photomicrograph by Silvana Konermann. Source: Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, pp. 214-222. Leipzig: J. A. Barth.
Magnification 5x. Credit: photomicrograph by Silvana Konermann. Source: Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, pp. 214-222. Leipzig: J. A. Barth.
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.
Source: Coe, Brian (1981): The History of Movie Photography. Westfield, N.J.: Eastview Editions.
Magnification of an image area. Source: Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, pp. 214-222. Leipzig: J. A. Barth.
Source: Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, pp. 214-222. Leipzig: J. A. Barth.
Linear filter structure in Polavision instant Super8 film. The filter lines are running along the film strip. According to the image placement of the Super-8 motion picture standard the image is divided vertically into triplets of R, G and B filter lines. The emulsion layer has been removed before this image was taken.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Linear filter structure in Polavision instant Super8 film with an emulsion layer of a high photographic density. With the focus set on the emulsion the linear structure of the coloured filters is not visible in this image.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Comparision of the linear filter structure of Polachrome 35mm instant slide film and Polavision Super-8 motion picture film. While the technical concept behind the two film stocks is the same, the Super-8 film was produced with linear filters of a smaller width. Based on the given width of an RGB filter triplet and the 135 still image size there are about 920 horizontal RGB-triplets per image for a Polachrome slide. The Super-8 film image is rotated by 90° compared to the 135 film still image and has about 340 vertical RGB-triplets per frame. The positioning of the image content compared to the filter lines is indicated in the picture.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Excerpt of a Polavision Super-8 home movie scanned on a Kinetta scanner in 4.8K resolution edge to edge. In post production a zoom in and out was applied to show the linear filter structure of Polavision film in motion. The zoom was based on image detail from the scan. No upres procedure was applied.
Credit: Scanning and editing by Martin Weiss.
A comparison of the colour filter structures of Dufaycolor, Autochrome and Polavision from Anonymous (1978): Ma il Polavision e' un'altra cosa!. Phototest Italiana, 41, Oct., pp 72–77.
A comparison of the colour filter structures of Dufaycolor, Autochrome and Polavision from Anonymous (1978): Ma il Polavision e' un'altra cosa!. Phototest Italiana, 41, Oct., pp 72–77. Translation: David Pfluger and Giorgio Trumpy.
The process of exposure and development of Polavision instant Super-8 film. From Anonymous (1978): Ma il Polavision e' un'altra cosa!. Phototest Italiana, 41, Oct., p. 74.
The process of exposure and development of Polavision instant Super-8 film. From Anonymous (1978): Ma il Polavision e' un'altra cosa!. Phototest Italiana, 41, Oct., p. 74. Translation: David Pfluger and Giorgio Trumpy.
"Polavision (top) vs. Kodachrome 40: These are blowups from closely matching frames of Debra Goldie, filmed simultaneously with a Polavision and a conventional super 8 camera, side by side, with the Twi Light quartz lamp mounted on top of the former. Subject distance was 6 ft., but the super 8 camera was focused for 10 ft. – same as the Polavision camera at its close-up setting. Both Polavision and Kodachrome 40 are closely equal in speed, but differ distinctly in structure, faithfulness of color rendition, and latitude, as is obvious from these frame reproductions. What can't be seen is the relative opacity of Polavision: according to our measurement, it transmits less than 9 percent as Kodachrome 40. However, the lab that made the duplicate transparency blow-ups of the frames found that it had to give a full six stops extra exposure."
(Leavitt, Don; Drukker Leendert (1978): First Look: Polavision instant movies. In: Popular Photography, Feb., p. 68.)
"C'est devant un immense agrandissement de l'intérieur d'une cassette Polavision sur la-quelle se découpe la silhouette de l'orateur (ci-contre à gauche) que le Dr Land présenta son invention. Ce document permet de distinguer les poulies de guidage du film (1 et 2), la réserve de produit de traitement et son bec ré-partiteur (3), la bobine débitrice (4), l'ensemble formé par le presseur de film et le prisme (5), la poulie d'entraînement du film (6)."
"It was in front of a huge enlargement of the interior of a Polavision cassette on which the silhouette of the speaker was cut out (opposite left) that Dr Land presented his invention. This document makes it possible to distinguish the guide pulleys of the film (1 and 2), the supply of treatment product and its distribution nozzle (3), the supply reel (4), the assembly formed by the presser of film and the prism (5), the film drive pulley (6)."
(Anonymous (1977): Naissance du cinéma instantané. In: L'auto-journal, Rubrique realisée sous la direction de Pierre Marais, 12, Jul., pp. 94–95.)
The production of the Filter structure on Polavision film includes the use of a lenticular surface, which is removed after the process. The lenticules are not involved in recording the color information during the taking of images in the camera.
Figure 10 and Figure 11 from: Land, Edwin H. (1997): An Introduction to Polavision. In: Photographic Science and Engineering, 21,5, Sept., Oct., pp. 228–236, on p. 228.
Comparison of thickness of the image carrying layer in a Kodak fine grain positive and Polavision film.
Figure 24 from: Land, Edwin H. (1997): An Introduction to Polavision. In: Photographic Science and Engineering, 21,5, Sept., Oct., pp. 228–236, on p. 235.
In the Polavision instant color film process the negative image recorded during the exposure of the film is neither developed from a latent image to a visible negative nor is it removed from the film. The latent negative stays as a layer in the film and is responsible for a slight attenuation of the image’s highlights.
Figure 25 from: Land, Edwin H. (1997): An Introduction to Polavision. In: Photographic Science and Engineering, 21,5, Sept., Oct., pp. 228–236, on p. 236.
Single frame of a Polavision home movie scanned in 3.5K resolution.
Linear filter structure in Polachrome 35mm instant slide film. The blue filter strips are slightly larger compared to the red and green filters. The filter lines are running along the film strip. According to the image placement of the 135 film format for still photography the image is divided horizontally into triplets of R, G and B filter lines.
The emulsion layer has been removed before the image was taken.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Linear filter structure in Polachrome 35mm instant slide film with a emulsion layer of low photographic density.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, University of Zurich.
Comparision of the linear filter structure of Polachrome 35mm instant slide film and Polavision Super-8 motion picture film. While the technical concept behind the two film stocks is the same, the Super-8 film was produced with linear filters of a smaller width. Based on the given width of an RGB filter triplet and the 135 still image size there are about 920 horizontal RGB-triplets per image for a Polachrome slide. The Super-8 film image is rotated by 90° compared to the 135 film still image and has about 340 vertical RGB-triplets per frame. The positioning of the image content compared to the filter lines is indicated in the picture.
Credit: David Pfluger, ERC Advanced Grant FilmColors. Imaging was performed with support of the Center for Microscopy and Image Analysis, 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.
Geoffrey S. Whitefield (Paget Prize Plate Company of Watford, England)
Additive 3 color: regular mosaic screen, separate system, still photography
“Paget Color Screen (1913–ca. 1922): lines of red and blue squares alternated with lines of green and blue squares (Fig. 2.52). The lines are at a 45-degree angle from the edge of the plate. The side of the red and green squares measures ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 69.
Additive 3 color: regular mosaic screen, still photography
“To produce the Omnicolore color screen, a sheet of glass was coated with a layer of gelatin on which lines of greasy blue-violet ink were ruled. The space between the lines was dyed yellow. Lines of greasy light blue ink were then ruled at ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 29.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 70.
Additive 3 color: mosaic screen, combined system, still photography
“New Agfa Color Plate (1923–1932): colored particles very small and not visible to the naked eye, but clumps of particles of the same color give the image a pointillist effect (Fig. 2.62). Unlike with the autochromes, in which the grains ...
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 73.
Additive 3 color: line screen, separate system, still photography
“McDonough Color Screen (1897–1900): sequence of red, yellow-green, and blue continuous lines (Fig. 2.49). Lines are thinner (approximate width 0.08 mm) and sharper than those of the Joly screen but are still visible with the naked eye or a ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 25.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 69.
Additive 3 color: mosaic screen, combined system, still photography
“Lumière Lumicolor (1933–1953): rolls and pack films on celluloid base. Individual colored grains cannot be seen with the naked eye, but clumps of grains of the same color give the image a pointillist effect (Fig. 2.71). Starch grains ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 76.
Additive 3 color: mosaic screen, combined system, still photography
“Lumière Filmcolor (1931–1953): sheet films (only) on celluloid base (Fig. 2.69). Individual colored grains cannot be seen with the naked eye, but clumps of grains of the same color give the image a pointillist effect. Filmcolor starch ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 74.
Additive 3 color: mosaic screen, combined system, still photography
“Lumière Alticolor (1952–1955): rolls and pack films on celluloid base. Alticolor starch grains are smaller but of less regular shape than those used in Filmcolor (Fig. 2.74). There are no black pigment particles; therefore, Alticolor ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 76.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 74.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 44.
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.
Additive 3 color: line screen and mosaic, still photography and film
“Another method of producing a line screen was patented in 1904 by the German Robert Krayn, and was demonstrated by him in November 1907. Krayn stained very thin celluloid sheets red, green and blue, and cemented them interleaved to form a ...
Source: Coe, Brian (1978): Colour Photography. The First Hundred Years 1840-1940. London: Ash & Grant, p. 54.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 34.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 35.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 35.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 36.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 74.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 74.
“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.
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.
William van Doren Kelley, Carroll H. Dunning and Wilson Salisbury (Kesdacolor)
Subtractive 2 color: Line screen filter, duplitized film stock
”The process as illustrated in USP 1431309 was a two-color additive process, but it is stated that it could be a three- or four-color process. For the original photography, the negative was exposed through a line screen composed of alternate bands ...
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.
Additive 3 color: line screen process, still photography and film
“In 1894 Professor John Joly of Dublin patented a process for producing a screen of red, green and blue-violet lines by ruling them on a gelatin-coated glass plate. Joly used ruling machines of great accuracy, with drawing pens trailed across ...
Photomicrograph (20x) of a Joly screen. Credit: Courtesy of George Eastman House, International Museum of Photography and Film.
Credit: Courtesy of George Eastman House, International Museum of Photography and Film.
Source: Coe, Brian (1978): Colour Photography. The First Hundred Years 1840-1940. London: Ash & Grant.
Credit: Gawain Weaver, Photograph Conservator, Gawain Weaver Art Conservation, San Anselmo, CA.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 69.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 22.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 23.
Additive 3 color: regular mosaic screen, separate system, still photography
“Johnsons Colour Screen (1953–ca. 1954): pattern virtually identical to Paget Color Screen, with lines of red and blue squares alternated with lines of green and blue squares, approximately 350 to the inch (Fig. 2.55). The lines are at a ...
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 70.
Additive 3 color: regular mosaic screen, combined system, still photography and film
“The launching of a combined version of the product called Finlaychrome was announced in 1931 but was still unavailable three years later; it is unclear if it was ever marketed.28 Instead, it seems that the company produced a viewing screen ...
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 235.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 39.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 40.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 70.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 70.
Photomicrograph (20x) of a Finlay screen. Credit: Courtesy of George Eastman House, International Museum of Photography and Film.
Finlay box. Photograph by Barbara Flueckiger.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 39.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 39.
Source: Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 40.