I am satisfied with the lens, the price is still inadequate, quality ratio, IMHO, loses "people's fifty dollars" AF 50mm f / 1.8D, but for me it's basically AF-S. Has pros: From aperture 2.2 sharp, from 3.5 AF mode with manual focus priority. Its cons: Strong chromatic aberration (fixed by software or some cameras) The focus ring backlashes (in most cases it is not needed).
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