To enable a user to reduce the load of film winding-up operation.

Between a winding-up knob 10 and a rotary shaft 42 engaged with the spool 20 of a cartridge main body 18, a driven gear 51 integrally arranged with the shaft 42, an internal gear 47 whose number of teeth is larger than that of the gear 51 and a planet gear 43 coaxially revolving with the knob 10, rotating by being meshed with the gear 47 and rotating the gear 51 in a film winding-up direction are arranged. Then, the rotation of the knob 10 is accelerated and transmitted to the shaft 42 so as to reduce the manipulated variable of the knob 10.