At 02:50 AM 3/3/2010, you wrote: > I am not sure whether silver oxide cells have as flat a >voltage characteristic as zinc air cells. It is the >constancy of voltage which is important.Well, yes and no. In VERY general terms, European cameras used a voltage regulation circuit -- camera folks often use the term, "compensated circuitry" -- while Jap cameras relied on the known abilities of the mercury cell. But then, what level of accuracy are you seeking? Bob Shell insisted on 1/6 stop accuracy, just before he went over to the Dark Side of digital.
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