Camera Casing: The function of the camera casing is to hold in and protect the other parts inside the camera. It prevents sunlight and other sources from getting into the camera.
Flash Circuit: the flash circuit adds light to create a lighter image. It produces a short flash of bright light.
Film: The camera film preserves the image of what the camera has seen/taken a photo of.
Gas Discharge Tube: The tube is filled with xenon gas. This conducts an electrical current by moving electrons from one electrode to another.
Camera Lens: The lens redirects the beams of light from an object to piece together a real image.
The Shutter: This opens and closes between the lens and film. It also controls how much light exposure there is.