Here is quick specs comparison for the new announced Sony a7R III (Amazon/B&H Photo Video/Adorama) and Nikon D850 (Amazon/B&H/Adorama) and Canon 5D Mark IV (Amazon/B&H/Adorama). The US price for Sony a7RIII body is $3,198.00, will be shipping in late November, 2017. See also: Sony a7R III Vs. Sony a7R II.