Sony recently upped the ante for digital cameras, accelerating the march toward higher resolution at lower prices. Its new 7.2-megapixel camera that costs less than $500 may seem amazing today, but experts say that the trend it reflects is likely to continue. Still, just how many megapixels do you need--and do these high-resolution cameras come with hidden costs?

"Sony will not be the only one to offer this level of performance," says Michelle Slaughter, director of digital photography trends at market research firm Infotrends. "Manufacturers are offering cameras that do more things."

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Source : PCWorld

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