Girl Group Portait Photography

Portrait lenses are often relatively inexpensive, because they can be built simply, and are close to the normal range. The cheapest portrait lenses are normal lenses (50mm), used on a cropped sensor. For example, the Canon EF 50mm f/1.8 II is the least expensive Canon lens, but when used on a 1.6× cropped sensor yields an 80mm equivalent focal length, which is at the wide end of portrait lenses.
Mobile portraiture
The documentary I Am Chicago was an experiment in mobile full-body portraiture, using natural light and a moving truck as a studio.