Nikon Nikkor AF-S 50 mm f/1.8G
8. Vignetting
On the smaller sensor of the Nikon D200 the older lens showed vignetting as high as 35%. How does the new model fare? Let’s have a look at the thumbnails below.
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There is slight improvement. At the maximum relative aperture the vignetting reaches a not very bothersome level of 28% (-0.95 EV) and it decreases to 21% (-0.69 EV) by f/2.0. On stopping down the lens by next stop we can marginalize the problem – the vignetting drops to 6%.
On full frame the Nikkor AF 1.8/50D had the maximum brightness loss in the corners getting to 41%. What’s interesting it is still a bit better result than that of the new model which, at the maximum aperture, shows vignetting on the level of 44% (-1.66 EV).
On stopping down to f/2.0 the aberration decreases to the value of 37% (-1.34 EV). It can be noticeable by f/2.8, where it reaches 19% (-0.59 EV) but it disappears completely by f/4.0 (8%).
In this category, the duel between the new and the old lens ends up in a draw. The first one is a bit better on a smaller sensor, the second – on full frame.