Nikon AF-S VR 105mm f/2.8G IF-ED - £620
Sharpness is superb at both its widest and mid-range apertures, but it isn't maintained throughout the frame.
A poor performance, with fringing evident throughout the frame. The fringing at the centre doesn't get too much worse as you travel further out.
Distortion isn't too problematic in real-world images, but overall performance is still less than impressive.
Image test verdict
For sharpness the Nikon is excellent, particularly if you use its widest apertures the most, but distortion and fringing is worse than expected.