Nikon Nikkor 18-140mm f3.5-5.6 ED VR lens review: Accessible, portable and high performanceBy Kevin Carter - Wednesday October 16 2013 Lens Review
With a very good overall DxOMark lens score of 16 points, the new model doesn’t disappoint. In fact, the overall image quality is similar to the previous iteration, but with an 11P-Mpix score for sharpness on the Nikon D7100 the new model has improved sharpness levels. As a result, this is the sharpest ‘super-zoom’ for Nikon DX format cameras in our database, and one of the best optical performers of its type.
Distortion can be a problem in a high-ratio zoom like this, but at 0.7% Nikon as done well to keep it under control. Vignetting and chromatic aberration are also well controlled. However, when set to 18mm chromatic aberration is noticeable in the extreme corners at all apertures. Shading is also visible at both ends of the zoom range, again in the furthest corners of the frame.