[tornado33]

Hi all
Though it was cloudy I got out the 850Nm infra red pass filter on my modded 350D F5.6, 1/90sec iso 200 hand held. Had to focus by trial and error.
I used Iris to process the image, decoding the raw image then converting the cfa back to a colour image, and made an interesting discovery. As it came up a perfect grey, that is no colour cast at all, it proves that the coloured dyes in the red green and blue pixels are all equally transparent to infra red light, so the camera effectively behaves like a monochrome sensor.

Gee IR light cuts through haze.
Scott