PURPOSE: A film condenser having a correction pattern is provided to correct a variation of an active region due to a mechanical error of a winding machine by controlling the variation of the active region within a predetermined range. CONSTITUTION: A film condenser having a correction pattern includes two sheets of dielectric films(11) and a plurality of insulating parts(13). A plurality of metal thin films are formed on predetermined sides of the dielectric films(11). The metal thin films are formed in a predetermined interval to the longitudinal directions of the dielectric films(11). A plurality of correction patterns(15) are locally formed in the predetermined interval on one of the dielectric films on which the metal thin films(12) are not formed. The correction patterns(15) are used for controlling a variation of an active region(14) within a predetermined range.
