Pedro Valtierra: 50 years as a photographer and more than 200,000 photos

To celebrate 50 years as a photographer capturing life in Mexico and Latin America, Pedro Valtierra launches "Without Fear of the Light." Credit: Ángel Llamas

Despite having half a century of experience behind the lens, Pedro Valtierra (Zacatecas, 1955) is still afraid of the light, but not as a fear of the unknown but out of respect for the profession that has fascinated and amazed him for 50 years.