Hi, Being new to photography, I've tried to do some research and I'm still not understanding something so I'm hoping you guys can explain this to me. A full frame digital sensor like the Canon 5D---am I understanding that you'd actually SEE more in the frame of your shot? If so, why would one need to get a full frame if they had...say... a nice wide angle lens? I do realize that these 2 things probably have nothing to do with eachother, but in just looking at a photo isnt it possible to see the exact same 'framed' photo? Thank you for your help on this, I really appreciate it.