Attached Link: http://www.renderosity.com/messages.ez?ForumID=12356&Form.ShowMessage=692661

When composing a portrait render in Poser one way to get a nice photographics style is to use the "Face Camera" and set the Camera's "Focal" dial somewhere between 100mm and 150mm. Some people will set the Focal dial as high as 350mm.

To see the differences in the Camera Focal settings and how they would enhance a Portrait Render, have a peek at
http://www.buckalew.net/lisa/tutorials/camerafocusing.html

There are several photographers that frequent the forums here that perhaps can add to this thread and give you all a technical point of view and the general rules to follow when doing a portrait.

HTH!

Lisa