Look at it this way. This is one of those things that is perfectly obvious once you think about it but took a long time for anyone to recognize. Engineers at Fuji have realized that the world has more horizontal and vertical lines than oblique ones, probably because both natural and manmade things organize themselves in relation to the pull of gravity. That means that the linear gaps in a conventional horizontal array of photodiodes in a digital camera will result in more loss of detail than an innovative, different arrangement of the diodes they are now introducing. [New Scientist]