...or do the facial characteristics matter in this determination?

Fat faces, thin faces, faces with large features in proportion to the head size, handsome faces, homely faces...HOW MUCH COMPACTING DO WE WISH TO IMPART?

For 35mm, the 'proper range' runs from 80mm through 105mm. Some even swear by, (or swear AT), the mighty 135mm. But what is REALLY the best way to determine this flexible number in order to optimize the results? Do different faces require different aspects? This is a question that is not parsed too often because the 'literature' gets into the way of challenging theory. - David Lyga