If you want to go a bit further to the dark side there are lenses available from Jaycar that screw straight in to a ToUcam. They are quite good quality and F2.0. The lens is about 4mm in diameter, far larger than the original lens and come in 4,6 and 8 mm FL. Only the 4 and 6 screw straight in and attain focus at infinity. They are only $30.
Bert
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