>>2688250I made the jump from a D600 to an E-M1 because I was walking around or hiking more and I didn't want to carry as much stuff, but I guess if you're convinced you need muh full frame and you're serious about the landscape thing and you're shooting at night then you'll probably be on a tripod in which case heavier gear probably wouldn't bother you much.
I vote D750 because it's an amazingly good camera and even if Sony is a tiny bit ahead in technology and stuff Nikon is still ahead in comfort and usability and ruggedness and those are worth more in my opinion.
