What is the sharpest lens you own?

here we go - TS-E 17 - probably the sharpest wide angle lens of all brands (at least sharper then any zeiss of nikon)

fully shifted and two frames stitched resulting in some 30 MPixel

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isn’t it funny, a ship that leaks from the top
ISO 9000 definition of quality: 'Degree to which a set of inherent characteristic fulfills requirements'
I am the classic “Windows by Day, Mac by Night user'
“The horizon of many people is a circle with zero radius which they call their point of view.” Albert Einstein