Nikon Nikkor AF-S 28 mm f/1.8G review - Vignetting

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Nikon Nikkor AF-S 28 mm f/1.8G

31 August 2012

Arkadiusz Olech

8. Vignetting

First, let’s check how the vignetting of the Nikkor 1.8/28G looks on the smaller APS-C/DX sensor.

Nikon Nikkor AF-S 28 mm f/1.8G - Vignetting

As you see it is clearly visible at the maximum relative aperture, amounting there to 33% (-1.14 EV). You can also notice it by f/2.0 where it gets to 26% (-0.87 EV). That aberration disappears by f/2.8 where it reaches just 10% (-0.32 EV) . How these achievements compare to those of the rivals? The chart below present them all.

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	Nikkor AF-S 1.8/28	Canon EF 1.8/28	Sigma EX 1.8/28	Zeiss 2.0/28
f/1.8	33%	22%	39%	-
f/2.0	26%	15%	33%	36%
f/2.8	10%	9%	14%	13%

Let’s progress now to the performance on full frame – here you get the most serious problems more often than not; the tested Nikkor 1.8/28G didn’t manage to avoid them as well.

At the maximum relative aperture you can see high vignetting which value we assessed as 53% (-2.19 EV). By f/2.0 it is hardly much lower, amounting to 48% (-1.88 EV) The brightness loss in the frame corners is also visible by f/2.8 where it reaches 31% (-1.07 EV). Only by f/4.0 and f/5.6 we deal with a moderate level of that aberration as it is respectively 19% (-0.62 EV) and 14% (-0.45 EV). On further stopping down the aperture you can’t notice any improvement because the vignetting keeps the level near 13% (-0.40 EV).

The chart below shows a comparison between the performance of the Nikkor and that of its rivals. As you see all lenses present very similar results. What’s interesting it’s the Sigma 1.8/28, with the biggest front element (its filter is 77 mm in diameter) fares the worst here.