Change In The Brightness Of The Subject And Display - Canon A-1 Repair Manual

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In fact, exposure is controlled in real time depend-
ing on variable lighting conditions. But, since
the signal is transmitted to the display at every
0.6 sec, the data is displayed after a time lag of
0.5 sec.
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Fig. 5 Change in the Brightness of the
Subject and Display
o Flashing is at 2 Hz