Follow
Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1

TOPIC:

L7-04: DEPTH OF FIELD AND FIELD OF VIEW 9 years 11 months ago #950

  • zzfixk21
  • zzfixk21's Avatar Topic Author
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 1014
  • Karma: 1
  • Thank you received: 0




ID Code: L7-04
Purpose: Demonstrate depth of field as a function of aperture setting, and to demonstrate field of view as a function of zoom setting on a TV lens.
Description: (1) Depth of field: Open the lens aperture with the Fresnel spotlight off, set the camera to full zoom (100), and place the camera at the closest distance at which it is possible to focus on the nearest can. Focus on the middle can, and observe the focusing of the extreme cans (photograph at right). Then turn on the spotlight so that it illuminates all of the cans and close the f-stop so that the lighting level is the same as before. Observe that the depth of field increases, because the increase in light level allows use of a smaller aperture (photograph at left).

(2) Field of view: Vary the zoom and observe the change in the size of the field of view.

Availability: Available

Please Log in to join the conversation.

Last edit: by zzfixk21.
  • Page:
  • 1
Time to create page: 0.091 seconds