ED
 
You got that right with the German Winter days. 
Sun ? was there ever a sun?
 
Hartmut



To: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Mon, 1 Dec 2008 06:50:18 
-0600Subject: RE: [ercoupe-tech] winter battery charging





 
As an old-time, primitive-tools photographer, I used to have to set exposures 
without use of a light meter.
 
We used the “Kodak rule” to set exposures.  We’d set the shutter speed to match 
the ASA (now ISO) number of the film and the exposures, as I recall, would be:
F16 – bright sun
F11 – hazy sun – ½ the light of bright sunlight
F8 – cloudy bright – ¼ the light of bright sunlight
F5.6 – cloudy regular – 1/8 the light of bright sunlight
F5.6 and drop a shutter speed – German* cloudy days in the winter
F5.6 and drop two shutter speeds – dark German cloudy days in the winter
F5.6 and drop three shutter speeds – on the edge of the woods on a dark German 
cloudy day in the winter
F5.6 and drop five shutter speeds – in the woods on a dark German cloudy day in 
the winter (with the camera braced against the tree as a makeshift tripod 
substitute (but I got the picture and the trip was not lost).
 
If your solar charger has the capacity, it should keep charging on cloudy days. 
 (A solar electric fence charger was probably designed and built with that 
extra capacity in mind.)
 
*Germany is farther north.  Our area was farther north than the U.S. / Canadian 
border.
 
Ed
 





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