Just when you thought it was safe to ignore megapixels in favor of more meaningful measures of image quality, Canon goes and makes a 50 megapixel prototype to shunt jaws to floors. Claimed to be twice as sensitive as the nearest competition, the sample sensor is 19x28mm in size, the same dimensions already used in its fancy DSLR models.
When this arrives, it will result in pictures about 8,000 by 6,000 pixels in size: enough to make a billboard-sized poster at 20dpi, or a 4x6 at an amazing 1,333 dpi
Also, Canon's planning on introducing a new file format to store all its pictures. The format is intended to either replace or supplement JPEG and CR2 RAW
