Now that you have a ten-megapixel camera, do you sneer at miserable peons like me who are still limping along with a mere six or seven million? It turns out that you may not be getting the use of all the pixels you’re paying for. There’s an intensely technical debate between Charles Sidney Johnson and Nathan Myhrvold (yes, that Nathan Myhrvold) at The Luminous Landscape (boy, does that site ever wrap some beautiful pictures in some butt-ugly web design). Frankly, I didn’t go slowly enough to follow all the math, but that’s OK, because there’s a tutorial called Diffraction & Photography over at Cambridge in Colour with a working demo where you can see how cranking the f/-stop decimates your pixels. Oh, and while we’re on things photographic, here’s some extreme camera porn.