Bokeh comparison between Sigma, Otus and Nikkor 58mm

Started Apr 19, 2014 | Discussions thread
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David Whysong Contributing Member • Posts: 585
Re: Bokeh comparison between Sigma, Otus and Nikkor 58mm

HSway wrote:

58/1.4G is optimized for night to give pleasing results when shooting points of light. It has very low vignetting wide open and is corrected for coma. I imagine for this type of images the sharpness can be relatively lower as it’s perceived differently. And I guess that they also used the lower (but even) sharpness at f1.4 - f2 to support the goal of achieving a pleasant rendering points of light reducing the imperfections.

It's not optimized for point-sources in the plane of focus, as that would produce a result like the Sigma or Zeiss. Based on viewing images and reading the translated interview linked in another post on this thread, it appears that it is optimized to maintain a similar radial brightness profile in the blur circle as distance from the focal plane varies.

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