Having sold my Nikorr16-85, I already found the Nikorr18-200, but then a mailing with a review came in. I liked the photos from it. After looking at the market, I found this lens. For 19k with delivery, I bought a new one, and Nikonovsky wanted to buy a used one for 20k. I had a lot of different lenses, Nikorovโs zooms (I tried fixes, not mine) and there was a Sigma 30 1.4 (I didnโt like it, because of the unpredictability with focusing) . And this one is very personal, the focus is accurate, the focus motor is quiet, like that of nikors. As for the vignette and other things, I'm not worried, about the darkness too (SB 900 helps). It lies pleasantly in the hands, not heavy. Contra also tolerates well, I like the cup. I practically donโt use the stub, I prefer a shorter shutter speed. In a word, the lens pleases. Even the opinion about sigma has changed for the better. It's been more than a year since I've been using it, there are no complaints, everything works! So my opinion is better to take it than Nikon with the same focal lengths. I don't regret it at all!