To provide a film unit provided with a lens in which the rate of the commonness of constituting parts is enhanced so as to reduce a manufacturing cost and whose exposure unit can be easily used again in the case of reusing the film unit provided with the lens in each type of film unit provided with the lens having different photographable feasible number.

A non-tooth section 90 where several teeth are not formed is formed on the outside periphery of a counter board 57. By changing the length of the section 90, the pitch of a tooth 87 of the board 57 can be constant regardless of the photographable numbering the film unit 2 provided with the lens. Thus, a common driving gear can be used in the different types of the film units provided with the lens having different photographing feasible number.