Arrangement for indicating that a selected exposure value is too high, too low or proper

In a photographic camera provided with an exposure-value selector, in combination, first and second current source terminals for connection to a current source;

• a light-dependent first voltage divider connected across the current source terminals and comprised of at least one photosensitive means exposed to scene light and having a respective first voltage-divider tap;
• a light-independent second voltage divider connected across the current source terminals and comprised of light-independent resistor means and having a respective second voltage-divider tap;
• means for varying the light incident upon the photosensitive means in dependence upon the setting of the exposure-value selector;
• and an indicating arrangement for indicating when the selected exposure value is too high, too low or proper, comprising first and second transistors of complementary conductivity type having bases connected to each other and to the first voltage-divider tap, having emitters connected to each other and to the second voltage-divider tap and having collectors connected to respective ones of the current source terminals, first and second light-emitting diodes each connected in the collector-emitter circuit of a respective one of the transistors, and an adjustable resistor connected between the bases and emitters of the transistors operative for establishing the difference in potential between the two voltage-divider taps at which one or the other of the transistors becomes conductive.