Is the zeiss otus 55mm f 1 4 sharp wide open?

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From Zeiss Otus 55mm f/1.4: Zeiss Otus 55mm f/1.4: A prime lens by Zeiss for Full frame cameras, 55mm f/1.4. Specs - Maker: Zeiss - Focal length: 55mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Canon EF, Nikon F - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Canon EF, Nikon F): as marked, 55mm. - On APS-C (Nikon F): like 82mm on full frame; f/1.4 ...

From Zeiss Otus 100mm f/1.4: Zeiss Otus 100mm f/1.4: A prime lens by Zeiss for Full frame cameras, 100mm f/1.4.

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