Almost everybody konws the falso color IR pictures made by "KODAK EKTACHROME Professional Infrared EIR Film". Using a yellow filter, this film maps green light to blue, yellow light ro green and IR to red.
I have accomplished the same behaviour suing 2 digital shots:
Blue | Green | Red | IR | |
Shot 1 (without IR-filter) | shown | shown | shown | not shown (blocked in the camera by the IR lockout filter) |
Shot 2 (with IR-filter) | not shown (locked by the IR filter in fron to the lens) | not shown (locked by the IR filter in fron to the lens) | not shown (locked by the IR filter in fron to the lens) | shown. The IR light leaking through the IR lockout filter in the camera is shown. |
Now I combine the 4 color channels:
Shot 1, blue: Not used
Shot 1, green: blue
Shot 1, red: green
Shot 2, IR: Red
Blue | Green | Red | |
Final picture | Green, Shot 1 | Red, Shot 1 | IR, Shot 2 |
© 2004 Benedikt Schenker