A report on IMAX and Movie projector

A comparison between 35 mm and 15/70 mm negative areas.
35 mm movie projector in operation
IMAX projector with horizontal film reel
Simulation of a spinning zoopraxiscope
An IMAX cinema camera, displayed at the National Science and Media Museum, Bradford, England
An early projector and seats from a movie theater
The 15 kW Xenon short-arc lamp used in IMAX projectors
1910's 35mm hand-cranked tinplate toy movie projector manufactured by Leonhard Müller in Nuremberg, Germany.
A typical entrance to an IMAX digital theater, such as the AMC Barton Creek Square 14 in Austin, Texas
35 mm Kinoton FP30ST movie projector, with parts labeled. (Click thumbnail for larger text.)
Outside of the IMAX dome in Tijuana, Baja California, Mexico
Mechanical sequence when image is shown twice and then advanced. 
Outer sprockets rotate continuously while the frame advance sprockets are controlled by the mechanism shown – a Geneva drive.
Planetario Alfa, museum, astronomical observatory and IMAX Dome system, Monterrey, Nuevo León, Mexico
Imaging lens Diastar of an Askania 35 mm movie projector (focal length: 400 mm)
The frame layout of the IMAX Dome film
Christie AW3 platter, BIG SKY Industries console, and Century SA projector
The control room of an IMAX Dome theatre at Cosmonova at the Swedish Museum of Natural History in Stockholm, Sweden
nonrewind in Royal – Malmö, Sweden
Closeup of an IMAX Dome 70mm film reel at Cosmonova
A diagram of the VistaVision format
Audiences view a film using 3D glasses.
A photo of a 35 mm film print featuring all four audio formats (or "quad track")- from left to right: SDDS (blue area to the left of the sprocket holes), Dolby Digital (grey area between the sprocket holes labelled with the Dolby "Double-D" logo in the middle), analog optical sound (the two white lines to the right of the sprocket holes), and the Datasat time code (the dashed line to the far right.)
Christopher Nolan has been a vocal supporter of the IMAX 70 mm film format, and has collaborated with the company since the mid-2000s.
Simulated wide screen image with 1.96 to 1 ratio as it would be seen in a camera viewfinder or on a theater screen
STS 41-C mission specialist Terry J. Hart, holds a 70-pound IMAX camera in the mid-deck of the space shuttle Challenger in 1984.
Simulated anamorphed image with 1.33 to 1 ratio (4:3) as it would appear on a frame of film
IMAX Filming at Paranal Observatory

IMAX is a proprietary system of high-resolution cameras, film formats, film projectors, and theaters known for having very large screens with a tall aspect ratio (approximately either 1.43:1 or 1.90:1) and steep stadium seating.

- IMAX

70 mm film is also used in both the flat and domed IMAX projection system.

- Movie projector
A comparison between 35 mm and 15/70 mm negative areas.

3 related topics with Alpha

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Modern cinema auditorium in Madrid, Spain

Movie theater

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Building that contains auditoria for viewing films (also called movies) for entertainment.

Building that contains auditoria for viewing films (also called movies) for entertainment.

Modern cinema auditorium in Madrid, Spain
Rodgers Theatre in Poplar Bluff in Missouri. This Art Deco-style theater opened in 1949.
The view from the projectionist's booth at Ultimate Palace Cinema in Oxford. The projector is displaying the 1997 Universal Pictures logo.
A cinema auditorium in Australia
The Fox Theater in Atlanta has an old-fashioned neon sign.
Kay Theater in Rockdale, Texas
The Berlin Wintergarten theatre was the site of the Skladanowsky brothers's first film presentation from 1 to 31 November 1895
L'Idéal Cinéma at Aniche, France, opened 23 November 1905, closed 1977, demolished in 1995
A small still-active Kino Juha movie theatre in Nurmijärvi, Finland, opened in 1958
Regent Theatre in Hokitika, New Zealand
Cinema Odeon auditorium in Florence
Interior of Hoyts cinemas auditorium in Perth, Australia, with stadium seating with cup holders, acoustic wall hangings and wall-mounted speakers.
Interior of a 1950s-style fine arts movie theater auditorium. A low pitch viewing floor is used.
Tennispalatsi, one of the major Finnkino multiplex movie theatre places, in Helsinki, Finland
A typical raked (sloped) floor for a movie auditorium, which gives all viewers a clear view of the screen.
Example of a Multiplex layout
A drive-in with a 33-metre (108-foot) wide inflatable movie screen in the centre of Brussels
A giant inflatable movie screen used at a temporary outdoor movie theater (open air cinema)
1967 Bedford mobile cinema
A typical multiplex (AMC Promenade 16 in Woodland Hills, Los Angeles)
Non-movie-theater screening: movie in a culture club in Germany
35 mm movie projector
Broadcast center
Admission prices board, Cinema Museum (London)
Seating indicator
Box office of a 1950s style fine arts movie theater.
A theatre-goer enjoys a show
Some movie theaters in Finland sell alcohol to take along to the movie itself in select showings. Such showings are always adults-only, regardless of the rating of the movie.
These ratings are from the revised Taiwan motion picture rating system which took effect in October 2015.
Admission ticket for the premier of the movie A Viszkis
A bag of popcorn from the Plaza Theater in Atlanta, Georgia.
Hallway of MPX Grande, a defunct movie theater in Pasaraya Blok M, Jakarta.

The film is projected with a movie projector onto a large projection screen at the front of the auditorium while the dialogue, sounds, and music are played through a number of wall-mounted speakers.

Modern "stadium seating" was utilized in IMAX theaters, which have very tall screens, beginning in the early 1970s.

15 kW xenon short-arc lamp used in IMAX projectors

Xenon arc lamp

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Highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.

Highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.

15 kW xenon short-arc lamp used in IMAX projectors
An early short arc xenon lamp, the Osram-STUD XBO 1001 of ~1954
An end-view of a 15 kW IMAX lamp showing the liquid-cooling ports
An Osram 100 W xenon/mercury short-arc lamp in reflector
Perspective view of 3 kW lamp showing plastic safety shield used during shipping.
Output profile of a xenon arc lamp.
A xenon arc lamp (Osram XBO 4000W).
A Cermax 2 kW xenon lamp from a video projector. A pair of heatsinks are clamped on the two metal bands around the perimeter, which also double to supply power to the lamp's electrodes.
A 1 kW xenon short-arc lamp power supply with the cover removed.

It produces a bright white light to simulate sunlight, with applications in movie projectors in theaters, in searchlights, and for specialized uses in industry and research.

Omnimax (Imax Dome) projection systems use single xenon lamps with ratings as high as 15 kW.

Magna Tech, Electronic Film Recorders and Reproducer, SEPMAG

Sound follower

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Device for the recording and playback of film sound that is recorded on magnetic film.

Device for the recording and playback of film sound that is recorded on magnetic film.

Magna Tech, Electronic Film Recorders and Reproducer, SEPMAG
A Sound follower to the left of a Shadow Telecine

The sound recording would then be synchronized with a movie projector or a telecine.

Sound followers are not used for most new film productions (the major exception being IMAX).