| 摘要 |
<p>An exposure control devicie for use with a camera which has a first objective lens of a relatively long focal length (4), a second objective lens of a relatively short focal length (2), said first and second objective lenses arranged side by side, and means which serves to choose between the optical paths to a film (1) of said first and second lenses, said exposure control device comprising:
first and second exposure control elements (8, 9) disposed in front of said first and second objective lenses (4, 2), respectively; andmeans (13,16,17,18,19) for simultaneously driving said first and second exposure control elements (8, 9) to cause them to operate at the same F number or exposure condition.</p> |
