Interesting. I kept meaning to find the exposure-lock feature in the manual, and never got around to looking for it. You just saved me an hour.

Thing is, I can adjust the exposure of each panel in the stitching software itself. Even when I was using the exposure-lock on the Canon, I needed to do this because I'd still get discontinuity of exposure between frames. So having to do that with this FX9 is not a big deal.