Colour IR Photo.

This is picture straight out of the camera, of course as the filter is very deep red the whole picture has a very strong cast, this is despite setting the camera white balance from something like grass or a tree.

To make a more natural rendition I used Gimp to set a white balance from an area that should be white to IR, this would be a cloud or again grass.  This gives a nice picture but the sky is brown, thus. This is probably the most 'honest' picture in the process, but the brown sky is pretty ugly.

To bring the brown sky blue we just swap the red and blue colour channels using the colour mixer, this gives a more natural colour, but is perhaps less like a true IR picture.  But then again, IR is invisible to our eyes, to any represntation is only that, a visible representation of invisible light....

All I then did was a bit if fiddling with the restoration functions of Showfoto to remove the high ISO noise (was originally shot at 1600) and bit of smoothing etc. It then looked like this...