Nikon 40mm f/2.8G AF-S DX Micro NIKKOR Lens for Nikon Digital SLR Cameras

Very hard to say anything negative about the optical quality of the lens. It's excellent, sharp even at f2.8, bokeh is good too. No field curvature, no distortion to speak of. A bit of vignetting at f2.8, but nothing major.

A very good portrait lens,

Easy to use lens for taking close up pictures or portraits.

Great for portraits, landscapes, and of course close-up work.

All around + macro + close-up, nice bokeh

Perfect for travelling, light, very good copying slides,