A while ago I lamented my lack of knowledge on all things camera to some friends when discussing the possibility of buying one for the occasional snap.
I am one of those people who almost never takes photographs (I don't even have a camera anymore) and knows next to nothing about all the technical mumbo-jumbo.
Luckily today's TidBits has an article on this subject
that clearly explains all the voodoo involved. Must read this more thoroughly tonight, if only to see what all these terms mean.