[Rover]

The 85mm f1.4 Milvus has nice bokeh. But it is even more expensive and similar in weight to this Sigma, which offers AF.

Both are very heavy for 85mm f1.4 lenses. The Tamron 85mm f1.8 weighs what 85mm f1.4 lenses used to weigh.. I agree that it is a very interesting lens.

Yes but the "classic" 85mm lenses like the Nikon 1.4 D and the original (non-Milvus) ZE were not that great at wide apertures... With the megapixel count going through the roof again I imagine they'd have their collective arse kicked just like so many lenses have been by the 5DSR in Klaus' tests.

This Sigma has exactly the same filter size as the Otus, by the way.