Thanks for the feedback all. It was an interesting experiment.
First part of the expirement was taking landscape shots with a 50mm prime lens rather than something with a wider angle.
The second part was to make multiple exposures and stitch them together to give something that I could print pretty big without loosing quality.
The cpl really makes a difference with waterfalls. The same shots without a cpl a few weeks back were very ordinary.
Both the images are from the same group of 17 exposures, panning across the waterfall in 3 groups of 5 or 6. The bottom group of 6 exposures made the panorama. 5 exposures from the bottom group and 5 from the top group made the portrait. I didn't need the middle group of exposures as there was enough overlap between the top and bottom groups.
No bracketing. All 17 exposures taken at f5.6, 1.3 secs, raw, manual, AF, cpl.
The auto focus was a bit of a problem, making it difdicult to stitch the left hand images. The next time I go back, I'm going to try autofocus on the central part of the waterfall then change to manual, so all exposures will have identical focus.
It was a lot of fun doing it and I intend printing them and if they look OK, printing them big. The panorama ended up 6000pix X 3000pix, so I hope to be able to print it up to 30" wide without loosing any quality.
Cheers
John