Having just recently bought a DSLR, and trying to learn as much as possible about photography, this is great stuff. I wish Peter Norvig would write about every

Having just recently bought a DSLR, and trying to learn as much as possible about photography, this is great stuff. I wish Peter Norvig would write about every topic I ever have a passing interest in. I'm envious of his ability to distill a complex scenario into simple steps.