It’s about the beauty in the volleyball players’ faces. While this is admittedly about cameras, even if you don’t care about sports or cameras, you owe it to yourself to go check out this slide show, which an astounding piece of reportage, damn the medium. For the camera geeks, the slideshow is illustrative material from Rob Galbraith’s write-up on Canon’s all-out assault on the state of the digicam art with their EOS-1D Mark III. But that’s not the magic. The magic is from The Online Photographer, a highly recommended photogeek blog, in particular the “Featured Comment” from Matthew Miller down at the bottom of So You Thought You Had Good Buffer Depth, and it asks a question: Why does a digital camera need a lens, anyhow? A lens is an expensive inflexible analog computer that locks you into one focal-length setting. If you capture the photons hitting the front of the lens, shouldn’t you be able to figure out the best focus later? Or has Mr. Miller got something wrong in the basic physics?