Design215 megapixels comparison and maximum print size charts:
"Each colored box represents a certain number of megapixels. The numbers along the top and left side are print dimensions in inches at 300ppi (pixels per inch). Most books and magazines require 300ppi for photo quality. For example, the chart shows that you can make a 5' x 7' photo quality print from a 3 megapixel camera."Cool.
If you ever print your photos or send them into magazines.
