In 1985, in an effort to combat software piracy. ASAP Developments invented the LensLok – a plastic lens in a foldaway frame.The LensLok device was essentially a row of prisms arranged vertically in a plastic holder. In this video we take a closer look at the LensLok to understand how it works, and why it ultimately failed as an anti-piracy device.

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Sources/Credits:

► Commercial Breaks Documentary – https://www.youtube.com/watch?v=ZoDh61sgCOg
► Copy Protection in Jet Set Willy – https://intarch.ac.uk/journal/issue45/2/1.html
► Crash Issue 24 – http://www.crashonline.org.uk/24/lenslok.htm

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#LensLok #ZXSpectrum #Elite

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