this was the 18-140. Goes to crap when I get toward the 140 end.
A LOT of zoom lenses are weakest at their longer end...almost,"Goes with the turrrrrritory, pardner."
I do not own the 18-140. I read the Thom Hogan review of it....he basically states that the D7100's no AA-filter and 24MP sensor is BETTER than the lens; that the lens is "truly consumer", and basically that the lens is NOT optically good enough to make the D7100's sensor show what it can do. WHich is an issue that has come about because of ever-increasing megapixel counts that suddenly hit the market; on an older, 10- or 12-MP crop-body Nikon, a LOT of lenses look "fine". Perfectly "fine".
This has happened during the digital age; the HIGH-end Nikkor lenses are very good, but people want huge zoom ranges, small size, light weight, and convenience. Annnnnd, they want it to be "affordable". If you want 18mm to 140mm and VR in a light, compact lens, that is low-cost, well....AIN'T GONNA HAPPEN!!!!!!