Julie Turkewitz

After failing to capture his vision for a project, Ivan Sigal unmoored himself from his preconceived story and went on a dizzying trek through Russia and Central Asia.

Sub, an Argentine photo collective, shares everything, especially an activist political outlook. A recent project looks at the lives of the country's wealthiest, who live in luxurious, gated communities.

Vitas Luckus's obsession with photographing the Soviet bloc won praise from admirers and beatings from officials. His work faded into obscurity after his death, but his widow is helping to revive his reputation.

Seeking to cope with immense personal tragedy, Sonia Soberats, who lost her vision in between losing a son and daughter, turned to photography.