LensTip.com

Lens review

Nikon Nikkor Z 70-200 mm f/2.8 VR S

30 September 2021
Maciej Latałło

7. Coma, astigmatism and bokeh

Thumbnails below show clearly that the tested lens doesn't experience any coma-related problems. Its slight influence can be noticed only at 70 mm as the point-like image of a diode in the frame corner increases its dimensions a bit. At the longer focal lengths even that effect is practically imperceptible so no objections in this category.

Center, 70 mm, f/2.8 Corner APS-C, 70 mm, f/2.8 Corner FF, 70 mm, f/2.8
Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh
Center, 135 mm, f/2.8 Corner APS-C, 135 mm, f/2.8 Corner FF, 135 mm, f/2.8
Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh
Center, 200 mm, f/2.8 Corner APS-C, 200 mm, f/2.8 Corner FF, 200 mm, f/2.8
Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh


Astigmatism, understood as an average difference between vertical and horiztontal MTF50 function values, amounted to 16.4% so can be placed on the borderline between medium and high levels. Still, it should be noticed that the 70 mm focal length contributes the most to that result as its astigmatism reaches over 18%; in case of longer focal lengths the levels are lower, hovering around 15-16%.


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Defocused circles of light look quite nice, especially when you remember that you deal here with a zoom lens. You can't notice any distinct traces of onion-ring bokeh, or any especially bright rim. Mechanical vignetting makes itself felt, though, being very visible by f/2.8, distinct by f/4.0 and still accented by f/5.6.

Center, 200 mm, f/2.8 Corner APS-C, 200 mm, f/2.8 Corner FF, 200 mm, f/2.8
Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh
Center, 200 mm, f/4.0 Corner APS-C, 200 mm, f/4.0 Corner FF, 200 mm, f/4.0
Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh
Center, 200 mm, f/5.6 Corner APS-C, 200 mm, f/5.6 Corner FF, 200 mm, f/5.6
Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh Nikon Nikkor Z 70-200 mm f/2.8 VR S - Coma, astigmatism and bokeh