Maybe: different conditions, different cameras and different styles of use. I can only say what I find on my camera the way I use them.

It occured to me, this is purely conjecture from observing others, that some people push the filter down a long way so the gradient is covering the foreground and fades all the way through the whole pic (more or less). If they do this and they did get a colour cast it would not be noticed as much because they probably correct it in setting a white balance and don't even notice. Then a lot of people use them on sunrise/set shots and you will probably not notice it there either.

But come to Essex which is flat as far as the eye can see with big skies and put one on when there are white fluffy clouds on a blue sky and I get magenta tinted clouds. Adjusting the white balance/Tint then upsets the colours in the foreground, so it is a right pain.

EDIT: Don't think so with mine Simon because it is most noticeable in the conditions above. I stay indoors when it looks like rain :D

Message edited on: 09/13/2005 12:13

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