I just noticed something about my three SPs: On two of them, the markings
go 400 .... 800 ... 1600. On the third (serial number 1358162), the
markings go 400 ... 1000 ... 1600. Click stops are in 1/3 steps on both
varieties.
The ones that say 800 are currently mounted on a tripod and covered by a
QR, and I'm too lazy to check them out.
Does anyone know when the change was introduced? Which came first? Why the
change was made? What other changes occurred during the Super Program /
Super A's manufacturing cycle?
Paul Franklin Stregevsky
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