Article: Digital cameras climb up the pixel ladder.(Knight Ridder Newspapers)

Digital cameras, in what has become a mid-year tradition, have just jumped up another 1 million pixels.

Four-megapixel cameras from two manufacturers _ Sony and Toshiba _ are now in stores, and three competitors _ Canon, Casio and Olympus _ will follow by the end of next month.

Prices are about the same, at $700 to $1,000, as last year's bleeding-edge, three-megapixel cameras.

I've just finished two weeks of shooting with the four-megapixel Toshiba PDR-M81, and I can report one clear and immediate benefit: You can crop a four-megapixel picture in half and still get a film-quality 8x10 print, something you can't do with a three-megapixel image.

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