| 摘要 |
A television camera in which an electronic view-finder is further used for adjusting an optimum focusing. The picture signal is then applied to the view-finder via a switching device, and that during the presence of an aperture correction signal. Outside the occurrence of this aperture correction signal the supply of a picture signal which has been made unsharp may be affected, or the supply thereof may be interrupted. Adjusting the optimum focusing on the basis of the picture on the viewer screen is then facilitated.
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