Thank you for the reply! It is quite helpful, it's given me a bunch more to research. I do understand depth of field; perhaps the photo I posted was a bad example. It just looks liek the other photos become dark towards the corners.
I have a couple more (proabably stupid) questions that I really need answered, if anybody would care to reply.
First off...what is a full frame sensor and how does it differ from other sensors? I've heard it quite a bit, but don't really know much about it. (Also, what is 'The L glass?')
Thanks
