Simple Amplification Exposure Meter Circuit

Published:2011/4/21 10:10:00 Author:Celina | Keyword: Simple, Amplification, Exposure Meter | From:SeekIC

This circuit is a simple exposure circuit,whose output voltage will be adjusted to zero by potentiometer VR when there is no illumination .This method is simply to meet the demand to adjust the exposure meter,while the adjustment of VR is merely to get a proper bright dark scope and the film speed of photographic paper .When there`s no requirement of photosensibility of various photographic paper, the indexing of potentiometer is fixed .



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