About 2.5 years ago, I began using this lens. This buy was without a doubt a good one. In many ways, he's the ideal man. Sharpness at the long end with an open aperture is the only area where it falls short of its sigma equivalent. Since I primarily shoot portraits with it at 50mm and f/2.8, I don't think this is too important. The best distortions, XA, and a marginally superior stabilizer more than make up for this one shortcoming. I feel confident recommending it to non-shooters. It's risky for "machine gunners" because they can mistake a shallow depth of field at a wide aperture for a lack of focus. They'd be better off with one of Nikon's basic 16-85 or 18-105 zooms. They may also be more convenient for trips.