5. Hemispherical projection

A few attempts have been made to project images onto a hemispherical screen in order to give a group of spectators, gathered in the center of a dome, the illusion of vision in the total field [63][64] . In general, the images are recorded by a 180° lens and occupy a circular position on the film, within which they are affected by spherical perspective distortion; this distortion is compensated for when projected onto a hemispherical dome [65] . CST points out that in this case, the viewer is immersed in the image, i.e. his or her visual field is totally occupied by the projected image. Experience has shown that the physical and intellectual fatigue caused is not conducive to the broadcasting of long programs,...

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Hemispherical projection

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Imax Corporation technology

Economic data

Construction costs for a room in special formats

KineMAX at Futuroscope (including equipment) cost the equivalent of 6.8 million euros.

A Géode-type Omnimax hall costs between 10.7 and 18.3 million euros, depending on the architectural choices made.

The Géode in Paris (including hall and equipment) cost the equivalent of 19.8 million euros.

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Bibliography

References

(1) - AUMONT (J.), BERGALA (A.), MARIE (M.), VERNET (M.) - Esthétique du film. - Nathan (1983).
(2) - PESEUX (V.) - 100 ans de cinéma à grand spectacle : Histoire et élaboration des formats spéciaux. - Thèse de doctorat,...