Parts of camera

1. SLR - the reflection from the mirror in the camera to capture objects.
2. TLR - Two same objective lenses to reflect the object
3. Lens - refract the image to the camera by conjunct them together.
4. Shutter - a device that allows light to pass through in a certain period of time to the camera.
5. Shutter speed control - control the time of letting light passing through
6. Aperture - the time of opening lens to let light pass through
7. ASA/ISO/Film Speed - film sensibility to light 
8. ASA/ISO Dial - sensibility to light
9. Shutter release button - means the shutter be opened for a certain length of time
10. Rewind Knob - rewind the film back after It's out