[thxbb12]

Maybe that is because the link you post does not actually work. It gives an XML file from the server.

Somehow you ignore that DPReview posts post processed images, and Lenstip does not? ;-)

The photo is focussed on the building, which is not in the corners. Subjects on the borders (left/right) are in the same distance ballpark as the building, and not as sharp as the MTFs promise.

The link works just fine.

Again, it's got nothing to do with sharpening and everything to do with focusing.

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We can split heirs all day long, but truth is Sony did a great job. And look the price point...
Speculation: if CaNikon would release such lens it will be $2,000 +. I doubt it will do much better on the test bench, let alone size and weight.

Indeed, the lens is impressively compact and light for what it is and its performance level.