I’ve been missing full frame shots since switching to Fuji XT2, and so I bought some beat up used gear.  The D600 and the Sigma Art were on sale and thought I’d try them out.  I used to own a D750, and the Sigma Art so shooting with this setup is a familiar feeling.  The ISO capabilities are not as great as the D750 or the XT2, but if you shoot in the right light the photos come out great.