Bill Snell
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Posts posted by Bill Snell
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John, Sorry I picked you up wrong. Big frost and just out of bed! With the advent of new films
the ASA ratings were adjusted in the sixties and the B&W safety margin was dropped. Films
became 1 stop faster! This probably accounts for the 1 stop difference. The Kodak Master
Photoguide, 1973 gives a 4 stop difference between "Light sand and Snow" (EV 16/17) and
"Open Shade" (EV 12/13) at 200asa. I'll stick with my meter.
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John, The numbers are actually "Exposure Values" and not f stops. EV 16 equates to 1/250 at
f16 on 200asa film and each higher or lower number equals one stop difference. The No.13
under open shade equals 1/250 @ f5.6 at 200asa. All the other funny pictures are minor
adjustments. Lots of leaf shutters were equiped with the system in the 50's 60's. Best of
luck.
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A clean green Norman!<div></div>
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A clean green Norman
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Uncoated 90mm Elmar (1933)<div></div>
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Very nice lens and no problems with build quality. Easier to use than uncoated Elmar 90 f4
LTM. Posting sample pics with both lenses for your info<div>
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On the Rocks
in No Words
Posted