[REVIEW-NIKKOR AF-S 50mm f1.4G lens]
This is a 50mm Nikkor prime lens with a maximum aperture of f1.4. Auto focussing is by Nikon's Silent Wave Motor and it works with the Nikon D40/60 range of cameras that are not fitted with in-body focus drives.
The sharpness, colour fidelity and contrast of this lens, and the complete absence of distortion, make it a perfect optic for portraits; The closest focus distance is 0.45m, so it is not a macro lens, but the brilliance of the images means they can be cropped and enlarged without loss of detail
The auto focus seems, for want of a better word, languid; It is always accurate and the mechanism is indeed silent, but the lens cruises, rather than snaps, into sharp focus