drewp

The Pixxo USB WebCam, model A-MW2130, has a separate infrared filter that is very easy to remove. You just unscrew the outer case, unscrew the lens, and pop out the square filter piece. It looks kind of like the one in this demo.

The AW-M2130 works fine under linux with v4l2. Here are the controls:

% v4lctl -c /dev/video1 list
attribute  | type   | current | default | comment
-----------+--------+---------+---------+-------------------------------------
norm       | choice | (null)  | (null)  |
input      | choice | zc3xx   | zc3xx   | zc3xx
contrast   | int    |     128 |     128 | range is 0 => 256
Gamma      | int    |       4 |       4 | range is 1 => 6
Auto Gain  | bool   | on      | on      |
Light freq | choice | 50 Hz   | 50 Hz   | NoFliker 50 Hz 60 Hz
Sharpness  | int    |       2 |       2 | range is 0 => 3

The camera was $10 at Frys.