LensTip.com

Lens review

Nikon Nikkor Z 24 mm f/1.8 S

15 April 2020
Maciej Latałło

7. Coma, astigmatism and bokeh

Thumbnails below show very well that coma might be partially responsible for weaker resolution results on edges and it seems to concern both types of detectors. Coma's small influence is visible even in the corner of the APS-C/DX sensor and in the corner of full frame it shows its true colours - you can spot it without any problems even on stopping down the aperture by 1 EV.

Still, it's worth adding that the reflex camera Nikkor AF-S 24 mm f/1.8G ED didn't perform in this category better and its behavior was significantly worse.

Center, f/1.8 Corner APS-C, f/1.8 Corner FF, f/1.8
Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 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 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 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, amounts to 20.4% and it is a significant value, notably weaker than astigmatism level of the reflex camera Nikkor AF-S 1.8/24G.

When it comes to out-of-focus areas they look very nice for a wide angle lens. Light spread in the circles is even but you can notice onion ring bokeh which stemms most probably from many aspherical elements in the construction. We also didn't notice any special problems with the rim of the circle and mechanical vignetting was bothersome only in the closest area of the maximum relative aperture.

Center, f/1.8 Corner APS-C, f/1.8 Corner FF, f/1.8
Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 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 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 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 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh Nikon Nikkor Z 24 mm f/1.8 S - Coma, astigmatism and bokeh