This E 15.- camera has the IR block filter in back of the lens. The sensor is not attached to the mother board, so it has to be held in place with a wrench (15) when unscrewing the lens, which is weakly glued to the 12 mm holder. It is possible to do this mod without detaching ribbon cables , as the inner frame can be tilted halfway out. I use the 2 filters from 3 D glasses: cyan and red, and an IR filter ( a plastic filter from Edmund optics, but an old floppy disk would work).
The filter can be permanently glued in back of the lens, but i decided to buy a 37 mm filter kit, with 10 mostly rather useless filters. The ring holding the glass can be removed with a putty knife ground to 37 mm width.
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I often use an orange-red filter, handheld in from of the camera, from a scrapped enlarger. I do a white balance with the eye dropper tool in PS, Gimp or Lightzone, and swap the red and blue channel (plenty instructions on youtube) The orange filter allows some more color variety.
The cyan filter basically just swaps the red with IR, and allows all other colors to pass.
Wow that's cool if I put an IR Illuminator infront of my camera and solder it to a 9volt battery holder will this be able to get the camera to work during the night time?
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