Camera-to subject distance determining apparatus and method

A method of bringing a portrait camera having a fixed-focus taking lens into coincidence with an optimum camera-to-subject distance appropriate for the fixed-focus taking lens regardless of differences in the size of a person's head to be photographed, said method comprising:

• setting a finder frame through which a person's head may be viewed to one of several alternative settings corresponding to respective head sizes, for example small, medium and large, to select the particular setting that best matches the size of a person's head to be photographed at the optimum camera-to-subject distance;
• and
• adjusting the specific distance between the portrait camera and a person's head to be photographed until the person's head, when viewed through the finder frame, appears to fill the finder frame to thereby bring the portrait camera into coincidence with the optimum camera-to subject distance.