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Author
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Topic: Any Cinema 180 fans still around?
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Phillip Grace
Expert Film Handler
Posts: 164
From: ACMI. Melbourne. Australia.
Registered: Mar 2004
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posted 06-16-2011 04:18 AM
I met one of these in the mid 1980's at an amusement arcade called The Fun Factory in South Yarra, Victoria. It was set up as a permanent attraction. The film for this one was 5-perf 70mm with 6 track magnetic sound. The screen was a dome of 1/4 of a sphere which stood on the flat auditorium floor. It was probably about 20 ft high at the centre. The speakers were arranged along the curve at floor level. Screen shape was maintained by a large vacuum fan which pulled the vinyl screen up into its frame. The audience were free to stand anywhere, but the best effect was along the chord. There were three programs, of about 12 minutes each, which screened from single spools, in rotation all day. The projector was installed in a booth, with the lens height about 8ft above the auditorium floor, pointing upwards, and a throw of about 40 ft. I dont recall where the horizon appeared on the screen. The projector itself was a Ballantyne Pro-70, with no 35mm components, mounted on a Rentec console. Xenon was mounted vertically in the console, with air cooling and water cooling to the diverter mirror. The image on the film was quite distorted, to compensate for the shape of the screen, and was masked to something like a semi-circle at the aperture. All the films seemed to involve a roller-coaster ride at some point, and I recall some vertical shots from an aircraft circling above the Seattle space needle. Ultra wild field of view and very fast motion was the general rule. The vertigo effect was amazing, and it was common for small children to fall backwards at the camera came to a sudden stop at the end of one of the shows. The f.o.h. staff would stand behind them to catch them. It was a good idea to hang on to the wall beside the unglazed projection room window at this point too, to prevent yourself falling out.
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