Wide angle lens
Focal distance: 28 mm
Field of view: 75°
Subject distance: approx 40 cm
The perspective makes the nose and the chins larger in an unnatural way
and makes the face look rounder than it is.
Normal lens
Focal distance: 50 mm
Field of view: 47°
Subject distance: approx 1 m
The normal lens gives the same magnification as our own eyes.
Telephoto lens
Focal distance: 135 mm
Field of view: 18°
Subject distance: approx 1.9 m
Telephoto lenses between 80 and 135 mm are the recommended choice for portraits.
Long telephoto lens
Focal distance: 200 mm
Field of view: 12.5°
Subject distance: approx 2.5 m
With a longer telephoto lens the picture seems more flat.