Older manual flash - how to read and set dial ?
Hello, have got that oldie two-AA manual flash for my RF's. Adjustment is made using round dial on side. I understand - select current ISO with arrow and read aperture setting, matching distance on opposite side of dial. To say, I shoot at ISO100 and object is 4.5 metres away, so I read f5.6 on dial and set it on lens.
But wait, dial freely rotates and I can select also distance with arrow. I set arrow to 4.5m and look for aperture setting at ISO100 - alas, it's f11, not f5.6. One of routes is wrong. Which ? I think rather first method is right.
What I miss in my assumptions ?