polarizers vs ND filters for near IR

[Shinnen]

Hi Marko,
Right. Well, this camera does have an IR mode, but the images are kind of lack lustre, with a green tinge. When I put the double polarizer on, the sky and water turn very dark. I must emphasize that I resorted to this method because of Sony's crippling the camera in IR mode, making it impossible to shoot outside in daylight. The two pictures I'm sending were just taken. (It's overcast here, so the sky isn't as black as on a sunny day, and the clouds aren't as white.) The first image is with the double polarizer and the next one (the control) is with an ND filter, only. (I had to use an ND filter, otherwise the picture would be just white.) It think the double polarizer has the added benefit of removing any remnants of colour from the picture.
..... john





P.S. If you want to see another example using the polarizers, look here http://www.photography.ca/Forums/att...sc04595mod.jpg The black pond is ice and the sky is blue.