1. Diane Arbus, Child With A Toy Hand Grenade In Central Park, N.Y.C, 1962.
2. SS300: He has captured the child in the photo perfectly and it seems as though he is not moving.
3. F5: There is a point of focus which is the child and a few paces behind him is still in focus.
4. ISO200: There is none or very little noise in this photo.