Infrared night vision digital camera/camcorder

Step 12 Remove IR filter and replace the lens

The lens contains an infrared filter which blocks any infrared light from reaching the sensor.  Normally this is desirable because infrared light will make color and shading appear very strange in color pictures.  But for night vision, we want the infrared light to get through.  The IR filter is a square piece of glass at the back of the lens.  It is held on with a plastic washer.  Use a knife to pry off the plastic washer, and remove the IR filter. 
If you want to take infrared-only pictures in daylight, you can insert two pieces of over-exposed film negative (remember those?) in place of the IR filter, as explained in other infrared photography instructions.  But this is not necessary for the night-vision purpose.  I did not do this. 
Replace the lens onto the camera, and be careful to check that the lens is straight before screwing it in.  Screw it in about as far as it was originally.

Comments

[JonahElijah]

For steps 11 and 12, remove the lens, take out the IR filter and replace the lens, there's a step that I learned, too late, in adjusting a motorcycle part.which had a factory preset,"screw it in this far and no further.." use a marker and mark two spots where the lens screws in. I used a yellowish-green highlighter pen for it. That way you can have it exactly at the same place it was before you took it off.

The motorcycle part the usual way is to mark it with women's lipstick. That would be a large chunk of grease and wax to be putting on such a small part though. Thus, the marker.