Is the Zeiss Milvus 85mm f/1.4 Lens sharp? This page visually answers that question. Shown above are 100% crops from a lab-captured 85mm f/1.4 test image. Observe the contrast and resolution of these results.
Is the Zeiss Milvus 85mm f/1.4 Lens set to 85mm f/1.4 sharper than the Rokinon AF 85mm f/1.4 Lens set to 85mm f/1.4? The image quality comparison above also answers that question. Switch between the results to see the sharpness differences between these lenses.