of the basic portion 53 and covered with the front cover 55 the flash unit 57 is constituted of a printed circuit board 58 a synchronized flash switch 59 a battery 60 a pair of battery contacts 61 and 62 a main capacitor 63 and so forth which are integrated into one body to charge the main capacitor 63 with the battery 60 a contact plate 65 which is disposed behind a resilient portion 64 of the front cover 55 is pressed onto the printed circuit board 58 by depressing the resilient portion 64 through a charge switch portion 51 formed in the outer casing 44 the main capacitor 63 is discharged through a flash tube when the synchronized flash switch 59 is turned on in cooperation with a shutter release the contact plate 65 is sandwiched between the front cover 55 and a cavity 66 formed in the basic body 53 the basic body 53 has a cassette chamber 67 for holding a cassette shell of the photographic film cassette and a film roll chamber 68 for holding unexposed photographic film previously pulled out from the cassette shell and wound into a roll the bottoms of these chamber 67 and 68 are closed by bottom lids 54a and 54b formed integrally with the rear cover 54 when assembling the above described film unit 40 on the production line as shown in fig2 first the basic.