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Cicona-Gualtierotti(1929–1944)
(Cicona, Gualtierotti)

An additive two-color process developed by Gualtiero Gualtierotti in Italy.


Principal Inventor(s): Gualtiero Gualtierotti
Location: Milan, Italy / Rome, Italy
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Countries of use: Italy
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1

Film Explorer

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The Cicona-Gualtierotti system used 64mm film to capture green and red records side-by-side onto a B/W panchromatic emulsion through a beam-splitting prism and filters. During projection, the two B/W images were filtered their respective colors and were overlaid to create a color image on screen.

Design by Christian Zavanaiu.

An alternative version of the Cicona-Gualtierotti process was proposed in 1938 on standard 35mm film. The color records remained side-by-side, as before, but were reduced in size from the 64mm negative to fit on the narrower 35mm film.

Design by Christian Zavanaiu.

Identification

Print
Sound
Camera film
expand all
collapse all
hide displayed identifier
Gauge (print)
64mm
35mm
Frame dimensions

Unknown

Perforation Type
Kodak Standard (KS)
Frame advancement
4-perforation
Vertical
Emulsion

B/W. Later prints were B/W with selective tinting applied to the relevant color records.

Edge markings

Unknown

Frame rate
24 fps
No. projected film strips

1

Color details

A two-color (red and green) system with partial color rendering. In the first version, the projector lens was combined with a system of rotating filter pairs of different hue and intensity to correct the color balance during projection. Initially adjusted directly by the projectionist, the system was later automated by notches made on the edge of the film at the points where the filter pair needed to be changed. In the later version, the filters were replaced by red and green dyes, applied directly to the support side of the film print on successive frames.

Screen credit

Unknown

Sound details

Presumably used for some films (details unknown).

Sound channels
mono
Speaker layouts
center
Gauge (camera film)
64mm
Frame dimensions

Unknown

Emulsion

B/W, panchromatic.

Edge markings

Unknown

History

Cicona-Gualtierotti was one of the earliest two-color additive processes pioneered in Italy, in the 1930s. Attempts to introduce the process to the Italian market had some resonance in the national press of the time, but never gave rise to actual industrial development. The Cicona company and engineer Gualtiero Gualtierotti, the promoters of the system, did not have a sufficient technological and economic structure behind them to guarantee commercial success. The complexity of the system – both in shooting and projection – made it ill-suited to the standards of Italian production in the 1930s.

Gualtierotti's research was divided between color and stereoscopy. Between 1929 and 1930 he proposed, through a Milanese company called Cicona (an acronym for “Cinematografia a Colori Naturali” [Natural Color Cinematography]), an additive two-color system. Special equipment for filming and projection was built with a view to making color film tests – the first of which was demonstrated in Milan and Rome in 1931 (Anon., 1931; Cauda, 1931). Another screening was organized during the first edition of the Venice Film Festival in 1932. Following this experimental phase, the system was named after its inventor, who later continued his research in Rome, in collaboration with Ettore Catalucci's Perfecta development and printing laboratory. The system was modified so that color films, or B/W stereoscopic films, could both be made using the same equipment. In the former case the two images were used to obtain the red and green color separations; in the latter, left- and right-eye records for 3-D.

In 1935 and 1936, Gualtierotti presented three experiments in stereoscopic cinema at the Turin and Milan exhibitions of Industrial Inventions and Novelties (Mostra Nazionale invenzioni e novità industriali). Positive feedback encouraged him to found the “Società Anonima Italiana Stereocine” (SAIS) in Milan and to put into production Nozze vagabonde (Guido Brignone, 1936), which is considered one of the first full-length stereoscopic fiction films ever made. Filming, which began in January 1936, was done in two versions, one normal (flat) and one stereoscopic, both in B/W. For the stereoscopic version of the film, a special camera was used that worked with a 64mm negative. It was also planned to shoot some scenes in color, based on the apparently convincing results obtained with some cartoons (Gualtierotti, 1935; Romanus, 1936). Although some advertisements speak of a “stereoscopic film”, Nozze vagabonde was released in theaters only in a standard B/W version. Similarly, there are no reports of color sequences (Anon., 1936).

In the meantime, Gualtierotti began production on two animated short films, La macchina del tempo and La secchia rapita (1937), made in collaboration with cartoonists Carlo and Vittorio Cossio. Again, technological difficulties and high costs hindered the desired results, and it is unlikely these shorts were shown publicly. Since the choice of color ruled out stereoscopy, and vice versa, it is quite likely that these two short films were also shot in double versions, one stereoscopic in B/W and one in color 2-D. According to an account by Remo Branca, Gualtierotti's system was later used to produce two additional animated shorts, Chichibio (1943) and Beppe Padella, directed by Florentine architect Piero Crisolini Malatesta (Branca, 1943: p. 190; Giachetti, 1944). The former obtained a censorship visa in July 1943, while the latter remained unfinished. Other existing sources on the two films, however, make no reference to the use of color.

The last available information concerns a private screening of a film made in 1940, titled La grazia, which was again presented in a private screening to film executives in Venice, which had become the capital of Fascist cinematography during the brief interlude of the Italian Social Republic (September 1943–April 1945) (Anon., 1940; Anon., 1944).

Selected Filmography

Beppe Padella
(Piero Crisolini Malatesta - Italy - 1943)

An animated short film in two-color additive, probably unfinished.

An animated short film in two-color additive, probably unfinished.

Chichibio
(Piero Crisolini Malatesta - Italy - 1943)

An animated short film in two-color additive, with censorship visa obtained in July 1943.

An animated short film in two-color additive, with censorship visa obtained in July 1943.

La macchina del tempo
(Carlo Cossio/Vittorio Cossio - Italy - 1937)

An animated short film, probably shot in two versions (two-color additive and stereoscopic B/W), but not released in either version.

An animated short film, probably shot in two versions (two-color additive and stereoscopic B/W), but not released in either version.

Nozze vagabonde
(Guido Brignone - Italy - 1936)

A feature film made in standard B/W and stereoscopic versions. Some demonstration scenes were shot in color, but not used in the final cut. Released theatrically only in B/W.

A feature film made in standard B/W and stereoscopic versions. Some demonstration scenes were shot in color, but not used in the final cut. Released theatrically only in B/W.

La Secchia rapita
(Carlo Cossio/Vittorio Cossio - Italy - 1937)

An animated short film, probably shot in two versions (two-color additive and stereoscopic B/W), with censorship visa obtained in February 1937.

An animated short film, probably shot in two versions (two-color additive and stereoscopic B/W), with censorship visa obtained in February 1937.

Il sistema Cicona secondo i brevetti di Gualtiero Gualtierotti
(Aldo Vergano - Italy - 1932)

A short demonstration film presented at the first Venice International Film Festival (1932).

A short demonstration film presented at the first Venice International Film Festival (1932).

Technology

The system used a beam-splitter prism and red and green filters to capture two color records side-by-side, on a 64mm B/W negative. A normal panchromatic emulsion was sufficient to record the chromatic selections of green and red. After normal developing and printing operations, the color of the subject was reconstructed in projection by additive synthesis, using 64mm film, through superimposition of the two images by means of filters and optical instruments similar to those used during shooting. Specifically, it was necessary to attach a rotating disk of filter pairs to the projector that reproduced the varying hues and intensities of the colors on the screen. 

This device attempted to overcome the limitations of the two-color palette by expanding the range of filter pairs used in projection on a scene-by-scene basis. Initially controlled by the projectionist by means of a button, the mechanism was later automated by a system operated by notches made on the edge of the film at the points where the filters were to be changed.

With the 1938 patent (IT366355), the Gualtierotti system was readapted for 35mm projection. The green and red color record frames on the 64mm negative were reduced by optical printing onto a 35mm frame. The frames appear side-by-side, each about a quarter the size of a normal 35mm frame. In time, the rotating disc in projection was discontinued. Instead, the filters were applied directly on the film’s base as strips of color overlaid onto each color record (Gualtierotti, 1940; Meccoli, 1942).

The rotating filter device that allowed varying hues and intensities of colors on the screen during additive projection.

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamenti nei sistemi di proiezione cinematografica a colori mediante sintesi additiva. IT patent 290699, filed June 18, 1930, and issued November 26, 1931.

The 64mm negative (left); and side-by-side green and red color record frames reduced to fit on a 35mm print for projection (right).

Meccoli, Domenico (1942). “Il film a colori. Il sistema Gualtierotti”. Cinema, 137 (March): pp. 131–2.

References

Anon. (1931). “Cinematografia a colori, sistema Cicona dell’Ing. Gualtierotti”. La Rivista del Cinematografo, 4: p. 105. 

Anon. (1936). “Nozze vagabonde”. Cinema, 11 (December): p. 433.

Anon. (1940). “Il problema del film a colori risolto da un inventore italiano”. Rivista del Cinematografo, 11: inside back cover. 

Anon. (1944). “Panoramica”. Film, 24 (July 8): p. 8.

Branca, Remo (1943). Polemiche sul cinema. Milan: Istituto di Propaganda Libraria.

Cauda, Ernesto (1931). “Il sistema a colori Gualtierotti e le sue possibilità industriali”. Lo Spettacolo Italiano, 7–8: pp. 262–3.

Giachetti, Cipriano (1944). “Nel mondo dei cartoni animati. Chichibio e Beppe Padella”. Film, 14 (April 29): p. 7.

Gualtierotti, Gualtiero (1935). “Il cinema stereoscopico”. Lo Schermo, 5 (December): p. 38.

Gualtierotti, Gualtiero (1940). Il cinema a colori e l’Italia. Rome: Edizione di propaganda.

Meccoli, Domenico (1942). “Il film a colori. Il sistema Gualtierotti”. Cinema, 137 (March): pp. 131–2.

Romanus (1936). “Guido Brignone e il primo film stereoscopico: Nozze vagabonde con Leda Gloria”. Cinema Illustrazione, 4 (January 22): p. 10.

Patents

Società italiana per la cinematografia a colori naturali ci.co.na anonima; Gualtierotti, Gualtiero. Perfezionamenti nei dispositivi per la presa e proiezione di fotografie e cinematografie a colori naturali. IT patent 277752, filed April 2, 1929, and issued September 18, 1930. 

Società italiana per la cinematografia a colori naturali ci.co.na anonima; Gualtierotti, Gualtiero. Sistema ottico atto ad ottenere da un unico fascio di raggi incidenti più immagini fotografiche identiche di uno stesso oggetto e a distanze volute su uno stesso piano. IT patent 277881, filed March 29, 1929, and issued September 23, 1930. 

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamenti nei sistemi ottici di presa per fotografie e cinematografie a colori. IT patent 290119, filed May 26, 1930, and issued November 9, 1930.

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamento degli apparecchi di proiezione di fotografie o di  cinematografie a colori naturali. IT patent 280403; filed June, 19, 1929, and issued December 9, 1930.

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamenti nei sistemi di proiezione cinematografica a colori mediante sintesi additiva. IT patent 290699, filed June 18, 1930, and issued November 26, 1931. 

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamenti nelle macchine da presa e proiezione cinematografiche. IT patent 290734, filed June 16, 1930, and issued November 27, 1931. 

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamenti nei sistemi di presa e proiezione per cinematografie a colori sistema additivo. IT patent 290781, filed June 16, 1930, and issued November 28, 1931. 

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Perfezionamenti nei sistemi di presa cinematografica e proiezione a colori per via di sintesi additiva. IT patent 291386, filed May 26, 1930, and issued December 16, 1931. 

Società italiana per la cinematografia a colori naturali ci.co.na anonima. Dispositivo per il cambiamento automatico di filtri di luce nei sistemi di proiezione cinematografica a colori mediante sintesi additiva. IT patent 294612, filed June 20, 1930, and issued March 30, 1932. 

Gualtierotti, Gualtiero. Dispositivo per apparecchi di proiezione atto a permettere proiezioni ad immagini multiple, stereoscopiche o a colori, utilizzando normali obiettivi. IT patent 366355, filed October 7, 1938, and issued December 24, 1938.

Compare

  • Cicona-Gualtierotti

    1929–1944
    Country
    Italy
    Gauge (camera film)
    64mm
    Gauge (print)
    64mm / 35mm
    Aspect Ratio
    Unknown
    No. projected film strips
    Categories
    3-D / Color / Two-color / Additive / Natural Color
    • Cinechrome

      1911–1925
      Country
      United Kingdom
      Gauge (camera film)
      35mm / 70mm
      Gauge (print)
      35mm / 70mm
      Aspect Ratio
      N/A
      No. projected film strips
      Categories
      Color / Two-color / Additive / Natural Color

    Related entries

    Author

    Federico Pierotti is professor of history of film techniques at the University of Lausanne. His work mainly focused on cinema and visual culture; the aesthetics, technology, and history of color in cinema; and the history of Italian cinema. He is the author of books on color, including La Couleur: une passion cinématographique (2020) and Un'archeologia del colore nel cinema italiano. Dal Technicolor ad Antonioni (2016). He is a member of the scientific committees of the journals L’Avventura – International Journal of Italian Film and Media Landscapes and Immagine – Note di Storia del Cinema.

    Author acknowledgments:

    Special thanks to Laura Pompei and Valentina Rossetto at Fondazione Centro Sperimentale di Cinematografia for digitizing images from the journal Cinema.

    Citation:

    Pierotti, Federico (2024). “Cicona-Gualtierotti”. In James Layton (ed.), Film Atlas. www.filmatlas.com. Brussels: International Federation of Film Archives / Rochester, NY: George Eastman Museum.