Please forgive me if this is a dumb question.
So, I've recently made the switch from a crop frame (D5500) to a full frame (D750) and I noticed that that great big, full frame that I can see in my viewfinder is never what comes out in the photo. And sorry for not knowing terminology, but I get that there's a square "frame guide" in the viewfinder, but I guess I expected that with a full frame you'd get at least SOME of what's outside that boundary in the pic, but that's not happening. What's outside that frame guide seems like about 40% of what's in the viewfinder. Is that just extra stuff to help with the overall composition? I don't know. It just seems weird to me that I should lose SO MUCH of what i can see in the viewfinder. i thought I'd be getting MORE frame with a "full frame" camera.
Thanks for any help you can provide.