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[DaViD Boulet]

Originally Posted by Bobby Henderson

IMAX isn't projected at 60fps. The straight 15/70 process runs at 24fps. The 3D process features two 15/70 film strips running at 24fps.

The rarely used IMAX HD process ran the film at 48fps.

Showscan was the only 70mm format which filmed and projected material at 60fps rates.

thanks for the clarification Bobby. I had been under the impression that 3-D IMAX productions where projected at "real" 48 fps (ie, not frame-doubled 24 fps)