Last weekend I used Aperture’s “smart album” feature to filter my photos from 2009 to today into groups of focal length:
(all values converted to 35mm equivalent focal length)
< 35 mm: Wide angle
35 to 65: more or less normal
66 to 135 mm: a typical focal length for portraits
135 to 200 mm: tele
> 200 mm: long tele