Good glass for full frame. The quality of the picture is not much different from fixes. Justifies the "Golden Ring" from Nikon. Pros: Quite sharp, good color reproduction and picture, fast autofocus, solid construction, dust and moisture protection, good hood included, looks solid, assembly Japan. Got cons: Unpleasantly surprised - chromate in contrast, distortion by 24 mm. There are autofocus misses when shooting from short distances. At aperture 2.8, it blurs the edges. Pretty sharp bokeh. Great weight and size. No stabilizer. High price.
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