This may be a silly question, but I am not sure. I am doing some film speed tests, and I will be testing in half stop increments via aperature.

It just occured to me that a half a stop between, say F16 and F11 may not be midway between the two numerals on the shutter dial.

Is this true, or, is half the distance on the dial, between to F stop numerals actually an increment of half a stop?

Thanks!!