headtracker / mag lens / macro lens

[linaccess at yokoy.de]

Hello,

am searching for a cheap mag lens to improve the resolution of the headtracker.
http://www.olpcaustria.org/mediawiki/index.php/Headtracker

What I have found is a very cheap macro lens. I took it from a one-way-camera and put it directly in front of the web cam lens. The difference is obvious. But I did not find a magnification lens, yet.

http://www.olpcaustria.org/mediawiki/index.php/Headtracker#magnification_lens

By the way, how could I make high resolution / less compressed pictures and videos with the XO?  


regards,

yokoy

ps: sorry for cross posting