Peter Hamm , Oct 17, 2011; 10:46 a.m.
There isn't a "perfect" portrait lens (for the traditional portrait lens guys) for DX from Nikon. The 85 is a touch long, but no doubt awesome if you have tons of space. I've done outdoor portraits with an old 105 that I adore. 50 is the field-of-view of about 75mm on FX, closer to what you are looking for, and one of those might come in handy. I've used the cheaper 1.8D model for portraits in a pinch. Great results. Loads of guys use the 70-200, I'll let them pipe in.
But another one I hear about and that lives on my wish list is the Voigtlander manual focus 58mm. It's PERFECT in focal length if you're looking for the classic 85mm look. Perhaps somebody who uses it can pipe in. I've only read reviews.
Also some guys use the 60mm (either the f2.8 from Nikon or f2 from Tamron). I've only used the older Nikon. I prefer the 50mm f1.8 or portraits.