Diane Arbus (1923-1971) was a great American photographer who created stark, uniquely compelling, unforgettable portraits of marginalized groups in society including transgender people, giants, dwarves, nudists and circus performers. Although sometimes accused of exploiting her subjects, her images reveal a profound kinship with them, and highlight the importance of telling the stories of all people, particularly those who are shunned and neglected. Arbus had a history of deep depression and committed suicide at the age of 48. She sometimes used a twin-lens Rolleiflex Automat MX and a 35mm Nikon F, but her favorite camera was a Mamiya C220, an interchangeable lens TLR introduced in 1968.