Shooting blind

Standing in front of 10 blind children in a small lecture-room, CaiCong instructs them step-by-step how to take a photo without seeing an object.

"Let's start by locating ourselves in the environment and sensing the frame of our image," Cai, who is also blind, says." Stretch your arms to touch what's in front of you, on your right and on your left.

"Then let senses guide you to discover the subject you want to shoot, and visualize how they will look in your photos."