Is the Zeiss Otus 55mm f/1.4 Lens sharp? This page visually answers that question. Shown above are 100% crops from a lab-captured 55mm f/8.0 test image. Observe the contrast and resolution of these results.
Is the Zeiss Otus 55mm f/1.4 Lens set to 55mm f/8.0 sharper than the Canon EF 200mm f/2L IS USM Lens set to mm f/? The image quality comparison above also answers that question. Switch between the results to see the sharpness differences between these lenses.