1. The range of distance that appears acceptably sharp

2. A unit of image resolution

3. The technique of following a moving subject with the camera

4. The device that converts light into an electrical signal

5. Device for measuring the intensity of light

6. The eyepiece or screen used to compose a shot

7. A lens feature that enables close-up photography

8. Light sensitivity of the camera sensor

9. Darkening of image corners caused by lens limitations

10. The opening in the lens that controls the amount of light

10. Adjustment of the lens opening to control exposure

11. Graphical representation of the tonal distribution in an image

12. Uncompressed and unprocessed image format