I need some feed back on this lens compared t0 the 50 1.4 AIS lens. I have been thinking of picking this lens up for my D200. It would be great with the D300 but can't buy that yet. Monte.
If you really need f-1.4 the two lenses are supposed to be about equal - the only difference is auto or manual focus. They are quite soft at f-1.4 and really need to be stopped down about three or four stops for best performance.
If you can live with an f-1.8, you will pay a great deal less and get better performance at the wide apertures, f-2.0 and f-2.8. By f-4.0 and f-5.6, the faster lens has pretty much caught up and there is little difference in sharpness - about as high as it gets. Both begin falling off at f-8.0 but not dramatically.
If it is about flaunting your jewelery at the camera club, the f-1.4 is certainly The Intimidator, but for an absolutely great lens at a very reasonable price, either the AI-S or D version of the f-1.8 is a better all around lens for a third the cost. What is the point in having an f-1.4 if you really need to use it at f-4.0 to get top results.
I might add that I use a number of AI-S lenses with the D200, and am very happy with them.
Thanks Larry. I do not need the 1.4 so the 1.8 would be fine. I never shoot wide open anyway. Most of the time no more than 5.6 I can pick the 1.8 up for a little of nothing.