Thanks for putting this up. The results were really surprising. It has certainly encouraged me to test my own lens which I think is really the only way to evaluate sharpness.
Many thanks
The plan is to find the sweet spot on the above lens (and I suspect it's a couple of stops from wide open) and to use focus stacking to create landscape images Sharp all the way through the frame from top to bottom.
I've read conflicting material from different sources as to exactly where this...
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