Ryan indeed speaks very highly of the Sig. In my post of a few days ago, I linked Dom's post on another 85mm thread in which he internally linked the review. It is interesting to note that a number of serious and acclaimed professionals have either spoken very highly of the Sig or actually stated it to be the lens of preference.Ryan Brenizer posted a review of the Sigma 85/1.4. He's a well known NYC wedding photographer who relies almost solely on a 85/1.4 - and apparently he prefers the Sigma over the Nikon. According to RB, both lenses have splendid bokeh. The Nikon has slightly better optics but the Sigma handles better between those two he prefers the Sigma.