PURPOSE: To reduce coupling parts and to improve the reliability and the durability of a photographic picture frame switching action by directly transmitting driving force with respect to at least two light shielding members by one lever member.

CONSTITUTION: When a knob 10 provided on a bottom surface is manually slid in a right direction in the case of panoramic photographing, a switching lever 9 is also slid in the right direction and a driving lever 4 coupled by a pin 8 engaged with a long hole 9b is turned counterclockwise around a shaft 5. Thus, a panoramic blade 2 linked to the tip of an arm part 4a through a shaft 6 is lifted and smoothly moved by a guide pin 1b and a guide hole 2a while keeping parallelism. Simultaneously with it, a panoramic blade 3 linked to the tip of an arm part 4b is lowered and linearly moved by a guide pin 1c and a guide hole 3a while keeping the parallelism. Then, the end surfaces of the blades 2 and 3 abut on stoppers 1d and 1e and form a panoramic picture obtained by shielding the light of the top and bottom thereof.