Across:
9. Any material that bounces light
13. A short lens
14. one of a succession of pictures on a roll of film
21. Films sensitivity to light
25. The smallest part of a digital file
26. A long focal local lens
30. A proof print of every frame on a roll of film
37. Slightly out of focus
38. digital jargon meaning a breakup of image
39. Using a camera to record news events
40. A burst of high intensity light synced to the camera

Down:
4. Material used for softening or spreading light
6. Increasing the aperture size
8. Area of the world seen through the camera
20. The light parts of a picture
22. An extremely wide angle lens
23. converting latent image to visible image