Nikon Nikkor Z 24-70 mm f/2.8 S II review - Coma, astigmatism and bokeh

Have you rated your lenses yet?

Nikon Nikkor Z 24-70 mm f/2.8 S II

11 May 2026

Maciej Latałło

7. Coma, astigmatism and bokeh

In the category of coma correction once again we see results that don't differ much from the performance of the predecessor. Once again in the corners of the APS-C/DX sensor coma is almost imperceptible. In the corner of full frame it makes itself felt mainly at the shortest focal length. In the 45-70 mm range we see just a slight blowup of image of a diode and by 24 mm it gets some 'wings' In the first model these wings seemed to be a tad smaller but the difference is not especially pronounced.

To sum up you can say it would be difficult to have any more serious objections to the coma correction of the new Nikkor Z 24-70 mm f/2.8 S II.

Center, 24 mm, f/2.8	Corner APS-C/DX, 24 mm, f/2.8	Corner FF, 24 mm, f/2.8

Center, 45 mm, f/2.8	Corner APS-C/DX, 45 mm, f/2.8	Corner FF, 45 mm, f/2.8

Center, 70 mm, f/2.8	Corner APS-C/DX, 70 mm, f/2.8	Corner FF, 70 mm, f/2.8

Please Support Us

If you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio; only that way we will be able to continue providing you interesting content for free.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

In order to make our test more interesting, we show images of a bright star put in the frame corner. This time we used just extreme focal lengths, but we also showed the influence of stopping down on the aberration described here. In this case results are very similar to the results of our diode image tests.

Corner FF, 24 mm, f/2.8	Corner FF, 24 mm, f/4.0

Corner FF, 70 mm, f/2.8	Corner FF, 70 mm, f/4.0

Astigmatism, understood as an average difference between vertical and horizontal MTF50 function values, amounted to 7.4% and it is a moderate value. We didn't notice any significant differences between particular focal lengths, although officially, the lowest result we got by 24 mm and the highest – in the middle of the range. Compared to the predecessor, the official result is a tad higher but the whole difference is within the margin of measuring error so you can say that both lens present here a similarly good level.

Defocused circles of light look well for a zoom lens. Using as many as three aspherical elements caused the onion ring bokeh but, fortunately, it is not especially pronounced. As a kind of consolation, you can say that mechanical vignetting disappears completely already on stopping down the aperture by 2 EV.

Center, 70 mm, f/2.8	Corner APS-C/DX, 70 mm, f/2.8	Corner FF, 70 mm, f/2.8

Center, 70 mm, f/4.0	Corner APS-C/DX, 70 mm, f/4.0	Corner FF, 70 mm, f/4.0

Center, 70 mm, f/5.6	Corner APS-C/DX, 70 mm, f/5.6	Corner FF, 70 mm, f/5.6