2012 National Association of Broadcasters (NAB) convention last week, 4K was everywhere—in cameras, displays, and workflow devices—at rapidly falling prices. Many professionals contend that 4K approaches the inherent spatial resolution of film, and it can be displayed on very large screens with no visible pixel structure.
However, in a pre-recorded demo in the Christie booth, James Cameron made a compelling argument that increasing the frame rate at which movies are shot and displayed from 24 to 48 or even 60 frames per second does more to sharpen perceived detail—especially in moving objects—than increasing the spatial resolution. In fact, all the demo material was 1920x1080 on a 15-foot-wide screen.
As the demo clearly illustrated, shooting and displaying movies at higher frame rates dramatically sharpens motion detail—so much so that it no longer looks like film, but more like video, which many people object to. So my question to you is, what's more important, the higher spatial resolution of 4K at film's traditional 24fps or the greater temporal resolution of higher frame rates at 2K.by scott wilkinson
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