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Saturday, April 11, 2009

When do you have enough megapixels?

You know those fancy monster-screen plasma TV sets? How many megapixels do you think that they have? For HDTV in 720p, they have one megapixel. In 1080i, two megapixels. That’s it. And yet people go ga-ga over the resolution of HDTV. Well, it is a bit of a step up from the quarter-megapixel resolution of analog TV.

How about the Cinemascope screen down at the movie theater? The new digital projection systems are designed to handle between four and eight megapixels.

And those giant billboards that you see alongside the highway? Two to six megapixels.

The human eye has between six and seven million “cone” receptors—the receptors that can distinguish color and detail. I wonder if that’s related?Source: How many megapixels is enough?


The Future?

Lower noise and extended dynamic range, will probably be the next unit of comparison, if they can ever come up with a language for these two specs we can all understand and agree on. Steve.

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