Abstract: A lens barrel retracting device for a camera comprises a first optical system holding part which is arranged to carry a first photo-taking optical system and to be capable of retracting and displacing the first photo-taking optical system relative to the camera body; a second optical system holding part which is arranged to displaceably carry a second photo-taking optical system and to be displaceable together with the first optical system holding part; a third optical system holding part which is arranged to displaceably carry a third photo-taking optical system and to be displaceable together with the second optical system holding part; and an operating member which is arranged to cause the first optical system holding part to be retracted and displaced and to cause the second and third photo-taking optical systems to be displaced relative to the second and third optical system holding parts respectively to perform a retracting action.