On a whim I decided to open up the box that contained the canister for Fuji NPS 160 and read the chart... (time on my hands as passenger in car). I was following quite nicely on the exposure guide but after some contemplation could not figure out the circled 1/2 in the chart. What does that mean? In the chart below it shows +1/2 for exposure compensation but it doesn't show a + or - for the one above. Any thoughts? I'm sure I'm going to be completely embarrased by the answer.