One photo is required to make and id card for visa and passport. When you visit official visa center they have their own camera and photographer to capture your looks to affix in the journey enabling document. The term passport become popular to define the photo size used for identity everywhere.
Do they know photography? Capturing the face for identity is simply clicking camera button and handing over a print of some definite size to you? Any one ever thought on the role of photography in Identity development?