Achieving Long Focal Length Television Lenses Electronically

Long focal length lenses were required for the television cameras at the national political conventions. By operating on the electron optics in the image section of the image orthicon to produce controlled magnification of the electronic image on the target, it was possible to simulate very long focal length lenses with relatively inexpensive shorter focal length lenses without any apparent degradation in picture quality.

Print ISSN

0361-4573

Published

1965-03

Content type

Original Research

DOI

10.5594/J06055