LensTip.com

Lens review

Nikon Nikkor Z 85 mm f/1.8 S

13 March 2020
Maciej Latałło

7. Coma, astigmatism and bokeh

Coma is the first category where the tested Nikkor ends up as the last. It should be noticed that the standards were set very high because none of its rivals experienced any problems here.

It would be difficult to criticise coma correction of the Nikkor Z 85 mm f/1.8 S in a harsh way because images of a diode are deformed only in the corner of full frame; they remain slight even though they are easy to notice. As a result you can talk about moderate levels, and it shouldn't be considered a serious flaw.

Center, f/1.8 Corner APS-C, f/1.8 Corner FF, f/1.8
Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh
Center, f/2.5 Corner APS-C, f/2.5 Corner FF, f/2.5
Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh


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Astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, amounted to 7.1% and it can be described as low. The result of the Nikkor remains worse than that of its predecessor and of the Tamron but better than that of the Sony.

When it comes to out-of-focus areas they look very nice. Light spread in the circles is even and the rim which appears on stopping down the aperture is not especially intensive. You can notice mechanic vignetting but it disappears practically completely on stopping down the aperture by 2 EV.

Center, f/1.8 Corner APS-C, f/1.8 Corner FF, f/1.8
Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh
Center, f/2.5 Corner APS-C, f/2.5 Corner FF, f/2.5
Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh
Center, f/3.5 Corner APS-C, f/3.5 Corner FF, f/3.5
Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 85 mm f/1.8 S - Coma, astigmatism and bokeh