stason.org logo lotus


previous page: 32. What is an "aspheric element"?page up: Photographic Lenses FAQnext page: 34. How does a teleconverter affect exposure, focusing, depth of field and image quality?

33. What is a teleconverter?

 Books
 TULARC






















Description

This article is from the Photographic Lenses FAQ, by David Jacobson with numerous contributions by others.

33. What is a teleconverter?

A teleconverter is a device that enlarges the center portion of the normal frame to fill the whole frame. In 35mm systems where the frames are 24x36 millimeters, a 2X teleconverter expands the central 12x18 mm to fill the full 24x36mm frame.

 

Continue to:


Share and Enjoy

Bookmark this story so others can enjoy it:
  • digg
  • Reddit
  • del.icio.us
  • Furl
  • Wists

Tags

photography, lenses, focal length, bellows, focus, pivot







TOP
previous page: 32. What is an "aspheric element"?page up: Photographic Lenses FAQnext page: 34. How does a teleconverter affect exposure, focusing, depth of field and image quality?