Optics+and+Sensors

Lenses, Megapixels, and Sensor Size

https://www.youtube.com/watch?v=yMO7Lsjhmi4&list=PLX2gX-ftPVXWA5TjEhVQSQQzZ-5_5Nui8

Dueling Cameras - smartphone vs. point-and-shoot http://www.pcworld.com/article/2466500/how-the-smartphone-defeated-the-point-and-shoot-digital-camera.html

http://connect.dpreview.com/post/1313669123/how-many-megapixels