Lens capture, light reflection, etc.
1. The camera lens captures light and allows the light to enter the camera through an opening opened by the shutter.
2. Light passes through a reflector or prism and is directed onto film, which contains photosensitive chemicals.
3. Once light enters the film, the photosensitive chemicals begin to react and form a visible image in a short period of time.
4. Photo paper Take the film out of the camera and the image gradually appears on the photo paper.