Before I spend too much on one of these what do you think of this lens for an "unobtrusive" portrait lens on the ist-D? I have the Tamron 28-75/2.8 but it's hardly unobtrusive and I find the bokeh very ugly for portraits. Ultimate sharpness is not a factor, but a flattering bokeh is very important, as is a reasonably fast speed. The 77 Ltd. would be my dream lens but it'll be a long time before I can afford one.
TIA Don
