How to Calculate a Digital Camera's Resolution from its Pixel Count

If you only know the pixel count (i.e. the number of megapixels) that a digital camera has, it's simple to calculate the linear resolution from it (i.e. the width and height of the resulting images) if you know the camera's aspect ratio. We're going to be using an imaginary 12-megapixel digital SLR with a 3:2 aspect ratio in our examples.

oil spill haiti earthquake sandra bullock favre