Technical Specifications
IMAX (15/70)
- spherical lenses
- 70 mm film, 15 perforations per frame
- horizontal rolling loop movement, from right to left (viewed from base side)
- 24 frames per second
- camera aperture: 70.41 mm × 52.63 mm (2.772 in × 2.072 in)
- projection aperture: at least 2 mm (0.079 in) less than camera aperture on the vertical axis and at least 0.41 mm (0.016 in) less on the horizontal axis
- aspect ratio: 1.43:1
- DMR aspect ratio: 1.89:1, 2.39:1
IMAX Dome/OMNIMAX
Same as IMAX except:
- fisheye lenses
- lens optically centered 9.4 mm (0.37 in) above film horizontal center line
- projected elliptically on a dome screen, 20° below and 110° above perfectly centered viewers
Read more about this topic: IMAX
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