I have not used one of this type. I don't use a dslr so techniques are different using a digital camera that does not have a TTL viewfinder.

Seems to me a difficult set up and one that is not very versatile because the graduation starts half way across the filter, you are limited to putting your horizon in the middle and that doesn't seem to easy from your experiences.

I have a square filter system for my camera that it is easy to use and I would recomend to anyone using any type of camera if they want a filter system for landscape photography. See Image for my set up.

Message edited on: 08/11/2005 02:56

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html