1. To create an image that is too dark

2. Opening in the lens that regulates the amount of light

3. Unwanted red reflection in a subject's eyes caused by flash

4. To create an image that is too bright or washed out

5. Device that measures the amount of light for proper exposure

6. Allow light to fall onto the image sensor for a specific duration

7. A photograph that one has taken of oneself

8. Individual photographic image in a sequence of images

9. Artificial burst of light used to illuminate a scene

10. Process of making an image appear sharp and clear

11. Portable, detachable flash unit

12. Pressing the shutter button to take a photograph

13. Act of removing unwanted edges from a photo

14. Setting for adjusting the color temperature of the flash

15. Mechanism that controls the duration of exposure

16. Undesirable grainy appearance in a photograph

17. Point of view or direction from which a photograph is taken

18. Mechanical component that reflects light into the viewfinder

19. Taking multiple photos in quick succession

20. Three-legged stand to hold the camera steady

21. Photograph taken without the subject's knowledge