A test shoot with the D5100 (16 MP) that I received only Fr1day 5/25. It looks as if this 'lightweight' is really a heavy hitter. Seems to work nicely with the AFS 16-35 f/4 G. Although some of these big AFS lenses (16-35 and especially the 24-70!) make the small D5100 body look like one of the tiny mirrorless bodies. But they WORK!