A lens-fitted photo film unit is preloaded with a roll of photo film whose film speed is ISO3200, and has a mode selection member that is manually operated to select one of a standard photography mode, an indoor photography mode and a night-view photography mode. In the standard photography mode, an exposure is made without flash with a small aperture size and at a high shutter speed. In the indoor photography mode, an exposure is made with a flashlight, with a middle aperture size and at a high shutter speed. In the night-view photography mode, an exposure is made with a flash light, with a large aperture size and at a low shutter speed.