Tag Archives: CdS

if only it was this easy …

Toronto.By 1964, a new kind of exposure meter finally made it possible to record low light settings. The CdS or Cadmium Sulfide cell resistance varied with the amount of light it was exposed to. A battery with a stable voltage … Continue reading

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the age of selenium begins

Toronto. In February and September of 2017 I wrote a number of posts about photographic meters. One of our long time members was rummaging through his collection when he came across his M-OS Rhamstine Electrophot. This meter led him to … Continue reading

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a missed opportunity

Toronto. When it burst on the scene in the early 1960s, the Gossen Lunasix (Luna-Pro over here) solved the problem of low light readings. Using the recently released Cadmium Sulphide (CdS) photo cell, the meter was both accurate and sensitive. … Continue reading

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