Development
In the early 1950s, the Smith-Dietrich Corporation patented a two camera process using a single mirror to combine two conventional 1.33:1 aspect ratio images to produce a seamless 2.66:1 aspect ratio image.
National Theatres acquired the rights to the patents and began development of a three camera system using the same system. The resulting camera was bulky at 600 pounds (272 kg)—but had a number of interesting features:
- The right and left cameras shot through mirrors, recording a reversed image — this was corrected by projecting the reversed image through a mirror in the theatre.
- An integrated view finder with a 146 degree field of view, enabling exact compositions.
- The three Eastman Kodak 27 millimeter lenses were electronically controlled—and shifted their optical centers depending on the focus.
- The mirrors had beveled edges, which feathered the edges of the images, eliminating the need for the vibrating comb "gigolos" used in Cinerama.
- The camera intermettants also employed film milled for Dubray-Howell 'long-pitch' sprockets, unlike that of either Cinerama (B-H 'short-pitch' negative perf) or Kinopanorama (K-S 'short-pitch' pos perf).
The film was shot and projected at 26 frames per second from six perforation 35 millimeter film and sound playback was from a seven track magnetic system with five front channels and two surround channels that could be steered to the left, right or rear wall of the theatre.
The system used a 120-degree curved screen—this is somewhat less than Cineramas 146-degree curve, and was probably because Cinerama held key patents on the design of deeply curved screens. However the smaller curve had the advantage of being cheaper and easier to make and install.
A film was needed to showcase the format, and this came in the shape of the travelogue Windjammer , about the actual voyage of a large sailing windjammer, the Christian Radich . Windjammer was produced by Louis De Rochemont and directed by his son Louis De Rochemont III. They had previously been involved with Cinerama Holiday , a travelogue in the similar Cinerama multi-projector format.
Widescreen images are displayed within a set of aspect ratios used in film, television and computer screens. In film, a widescreen film is any film image with a width-to-height aspect ratio greater than 4:3 (12:9).
35 mm film is a film gauge used in filmmaking, and the film standard. In motion pictures that record on film, 35 mm is the most commonly used gauge. The name of the gauge is not a direct measurement, and refers to the nominal width of the 35 mm format photographic film, which consists of strips 1.377 ± 0.001 inches (34.976 ± 0.025 mm) wide. The standard image exposure length on 35 mm for movies is four perforations per frame along both edges, which results in 16 frames per foot of film.
VistaVision is a higher resolution, widescreen variant of the 35 mm motion picture film format which was created by engineers at Paramount Pictures in 1954.
70 mm film is a wide high-resolution film gauge for motion picture photography, with a negative area nearly 3.5 times as large as the standard 35 mm motion picture film format. As used in cameras, the film is 65 mm (2.6 in) wide. For projection, the original 65 mm film is printed on 70 mm (2.8 in) film. The additional 5 mm contains the four magnetic stripes, holding six tracks of stereophonic sound. Although later 70 mm prints use digital sound encoding, the vast majority of existing and surviving 70 mm prints pre-date this technology.
16 mm film is a historically popular and economical gauge of film. 16 mm refers to the width of the film ; other common film gauges include 8 mm and 35 mm. It is generally used for non-theatrical film-making, or for low-budget motion pictures. It also existed as a popular amateur or home movie-making format for several decades, alongside 8 mm film and later Super 8 film. Eastman Kodak released the first 16 mm "outfit" in 1923, consisting of a camera, projector, tripod, screen and splicer, for US$335. RCA-Victor introduced a 16 mm sound movie projector in 1932, and developed an optical sound-on-film 16 mm camera, released in 1935.
CinemaScope is an anamorphic lens series used, from 1953 to 1967, and less often later, for shooting widescreen films that, crucially, could be screened in theatres using existing equipment, albeit with a lens adapter.
Cinerama is a widescreen process that originally projected images simultaneously from three synchronized 35mm projectors onto a huge, deeply curved screen, subtending 146-degrees of arc. The trademarked process was marketed by the Cinerama corporation. It was the first of several novel processes introduced during the 1950s when the movie industry was reacting to competition from television. Cinerama was presented to the public as a theatrical event, with reserved seating and printed programs, and audience members often dressed in their best attire for the evening.
Negative pulldown is the manner in which an image is exposed on a film stock, described by the number of film perforations spanned by an individual frame. It can also describe whether the image captured on the negative is oriented horizontally or vertically. Changing the number of exposed perforations allows a cinematographer to change both the aspect ratio of the image and the size of the area on the film stock that the image occupies.
Todd-AO is an American post-production company founded in 1953 by Mike Todd and Robert Naify, providing sound-related services to the motion picture and television industries. For more than five decades, it was the worldwide leader in theater sound. The company now operates one facility in the Los Angeles area.
Windjammer is a 1958 documentary film that recorded a 17,500-nautical-mile (32,400 km) voyage of the Norwegian sail training ship Christian Radich. Windjammer was produced by Louis de Rochemont and directed by Louis de Rochemont III. It was the only film to be shot in the widescreen Cinemiracle process, which came with a seven-track stereophonic soundtrack.
Techniscope or 2-perf is a 35 mm motion picture camera film format introduced by Technicolor Italia in 1960. The Techniscope format uses a two film-perforation negative pulldown per frame, instead of the standard four-perforation frame usually exposed in 35 mm film photography. Techniscope's 2.33:1 aspect ratio is easily enlarged to the 2.39:1 widescreen ratio, because it uses half the amount of 35 mm film stock and standard spherical lenses. Thus, Techniscope release prints are made by anamorphosing, enlarging each frame vertically by a factor of two.
Super 35 is a motion picture film format that uses exactly the same film stock as standard 35 mm film, but puts a larger image frame on that stock by using the space normally reserved for the optical analog sound track.
70 mm Grandeur film, also called Fox Grandeur or Grandeur 70, is a 70 mm widescreen film format developed by William Fox through his Fox Film and Fox-Case corporations and used commercially on a small but successful scale in 1929–30.
Technirama is a screen process that has been used by some film production houses as an alternative to CinemaScope. It was first used in 1957 but fell into disuse in the mid-1960s. The process was invented by Technicolor and is an anamorphic process with a screen ratio the same as revised CinemaScope (2.35:1), but it is actually 2.25:1 on the negative.
Super Panavision 70 is the marketing brand name used to identify movies photographed with Panavision 70 mm spherical optics between 1959 and 1983.
Polyvision was the name given by the French film critic Émile Vuillermoz to a specialized widescreen film format devised exclusively for the filming and projection of Abel Gance's 1927 film Napoleon.
Kinopanorama is a three-lens, three-film widescreen film format. Although Kinopanorama was initially known as Panorama in the Soviet Union the name was later revised to include its current name prior to the premiere screenings in Moscow in 1958. In some countries, including Cuba, Greece, Norway and Sweden, it was usually marketed as Soviet Cinerama. When Great Is My Country and The Enchanted Mirror, were exhibited at the Mayfair Theatre in New York City in 1958, it was briefly advertised as Cinepanorama. Kinopanorama is for the most part identical in operation to that of Fred Waller's American-designed Cinerama format.
Ultra Panavision 70 and MGM Camera 65 were, from 1957 to 1966, the marketing brands that identified motion pictures photographed with Panavision's anamorphic movie camera lenses on 65 mm film. Ultra Panavision 70 and MGM Camera 65 were shot at 24 frames per second (fps) using anamorphic camera lenses. Ultra Panavision 70 and MGM Camera 65's anamorphic lenses compressed the image 1.25 times, yielding an extremely wide aspect ratio of 2.76:1.
Anamorphic format is the cinematography technique of shooting a widescreen picture on standard 35 mm film or other visual recording media with a non-widescreen native aspect ratio. It also refers to the projection format in which a distorted image is "stretched" by an anamorphic projection lens to recreate the original aspect ratio on the viewing screen. The word anamorphic and its derivatives stem from the Greek anamorphoo, compound of morphé with the prefix aná. In the late 1990s and 2000s, anamorphic lost popularity in comparison to "flat" formats such as Super 35 with the advent of digital intermediates; however, in the years since digital cinema cameras and projectors have become commonplace, anamorphic has experienced a considerable resurgence of popularity, due in large part to the higher base ISO sensitivity of digital sensors, which facilitates shooting at smaller apertures.
The aspect ratio of an image is the ratio of its width to its height, and is expressed with two numbers separated by a colon, such as 16:9, sixteen-to-nine. For the x:y aspect ratio, the image is x units wide and y units high. Common aspect ratios are 1.85:1 and 2.39:1 in cinematography, 4:3 and 16:9 in television photography, and 3:2 in still photography.
