Thanks for info, helps the learning process when we know it.
I would never assume a tripod, as one of my more interesting shots was taken from a convenient rock with assorted pebbles to aim the camera!
Misses was so anxious about the camera falling over the edge of the valley she bought me a Gorrilla Pod for the next time.
Like the smoke on the water effect, a different take on the idea, very nice with the narrow field of view keeps the eye on the detail of the subject. What exposure, any other kit, ND filter?
Thanks - here's the data: f/22 (probably overkill); 0.8 seconds; ISO 100; I don't recall using a ND filter, but I'm pretty sure I was using a circular polarizer (and a tripod, of course!).