EXCERPT page containing first few paragraphs. 2019-04-22 00:06:27
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Nikon does not provide vignetting charts.
Vignetting is moderate for a 24mm f/1.8. Since it can be a creative tool, the moderate vignetting at f/1.8 and f/2 is quite useful.
Example: Blue Dusk over Campito Peak
Note: banding in the sky is not seen in the original 16-bit TIF in ProPhotoRGB; settings that could avoid this for JPEG presentation were not discovered.
Vignetting is moderate at f/1.8, but greatly reduced by f/2.8 and nearly gone by f/4.5. Use of f/6.3brightens the extreme corners.
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