Testing out shooting FP4+at 64 to see if the "detail" in the shadows is better. I can't tell if I particularly like it. But I'm happy with the image, however something intriguing happened mid-exposure... it was something like an 8 minute exposure, as it was almost dark, about 2 minutes in, the spot light on the waterfall suddenly came on, I panicked, re-light metered, and to compensate for the sudden center light, but wanting a bit more exposure in the dark areas, I opened the aperture to wide open and shortened the exposure time by a LOT