Original carrier and image reader

An image reader comprising:

• a plurality of types of film carriers adapted for use with a corresponding variety of types of films;
• each of the film carriers having:
• holding means for holding a film having an image recorded thereon;
• light transmitting means provided in said holding means for transmitting light from a light source and irradiating the light onto an area of the film having the recorded image when the film is held by said holding means;
• a focusing chart for performing a focusing operation disposed in a vicinity of a film holding position of said holding means;
• a mounting portion adapted for having said plurality of types of film carriers selectively mounted thereto;
• image reading means for reading the image on the film held by the holding means of said film carrier mounted to said mounting portion, and for reading the focusing chart provided in said film carrier;
• and
• focusing means for performing the focusing operation of the image reading means so as to maximize a contrast of an image of the focusing chart read by said image reading means;
• said focusing means adapted for performing the focusing operation of the image reading means so as to maximize the contrast of the image read by said image reading means;
• and
• one of the focusing operation with respect to said focusing chart and the focusing operation with respect to the film being able to be selected;
• and
• wherein said focusing chart is translatable between a position which is at once inside a range of said light transmitting means and outside an image recording range of the recorded film image, when the recorded film image is also inside the range of said light transmitting means, and a position inside the range of the recorded film image when the recorded film image is inside the range of said light transmitting means.