Nikon 200-500mm f/5.6E vs. 200-400mm f/4G vs. 80-400mm f/4.5-5.6G specifications comparison - Nikon Rumors
Nikon 200-500mm f/5.6E zoom vs. the 500mm f/4E prime lens comparison - Nikon Rumors
Nikon Z50 Camera Review | Sans Mirror | Thom Hogan
Thom Hogan: "Let me state right up front: the best all-around full frame camera you can buy at the end of 2018 is the Nikon D850. Still." - Nikon Rumors