The Guy on Digitalrev.com does a good video about this. He does however come at the question from a very different angle. That is to say less technical point of view then some of the replies above. I'm not making fun of any one- it's just that he (he's called Kai) talks about how the lens feels and how 50mm is a kind of natural field of view on a FF camera. If I had any real computer skills I would leave the specific URL here, but you know google Digitalrev.com and 50mm and theirs are among the first videos come up.
|5 Reasons Why You Need a 50mm lens||Small | Large|