Nikon AF-S 50mm F/1.8 G - variation between copies, sweet spot, sharpness

I recently made a video where I compared the sharpness differences of 3 copies of Nikon AF-S Nikkor 50mm F/1.8 G at F4.5. I saw large differences and now I’m investigating this further. I’m determining sharpness profiles for 3 copies of Nikon AF-S Nikkor 50mm F/1.8 G. I’m also looking at lens center sharpness and corner sharpness separately and determine the sweet spot for Nikkor 50mm F/1.8 G.
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LINKS:
How to measure lens and photo sharpness: • A quick method for mea...
Review of Nikon AF-S Nikkor 50mm F/1.8 G: • Nikon AF-S Nikkor 50 m...
Review of Nikon D3400: • Nikon D3400 review - t...
How different are 3 copies of the same lens (Nikon AF-S Nikkor 50mm F/1.8 G): • Comparing 3 copies of ...
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